East

From my tests, others can chime in, it didn't work.  I had to narrow the ports down.  That's when I begin to start to see a difference.  If it works for you go for it.   But for me, I always notice I was behind my teammates and it still took longer for my TTK. Not sure why that is.  Also, setting Anti buffer bloat to never helped me immensely!
Funny too because even though activision tells you set open all those ports the only port that UpnP recognize is 3074 (for others it's 3075).  I never saw those other ports open up.  But opening them up via port forwarding did nothing either (at least for me). And, I'm talking going back to BO4.
 
 

This thread (and others) is created to assist those who are having chronic hit rego and lag movement issues in which the game is simply not enjoyable.   It was determined that there are port ranges that need to be placed in traffic prioritization that are not listed by the games developers.  The point to this is that by prioritizing those ports one would have better hit registration and overall better fluidity in the game(s) you play. 
The information provided to you is not a final on the research presented so far.  Furthermore, testing is ongoing.  It take this community as a whole to help gather more data/input to determine what works and what doesn't.  Please keep that in mind when reading this thread.  Thanks
Ok here is a list of ports you want to test for Traffic Prioritization as discussed in this thread:
1. Reboot modem.  Next reboot your router (if you don't have any double nat issues if you do go to step 2, 1st).
2. Make sure you don't have double NAT (google how to check). However you can do either a tracert or check your router to see if you are using a private or public ip.  If private more then likely you have double nat.  In order to compensate for double nat you will need to use your modem to place your router in DMZ (google how to).  Afterwards you may need to reboot your modem then your router again in order for it to take effect. 
3. For your XR router make sure you Disable DumaOS Classified Games.
4. Uncheck Shared Excess for both download and upload from Bandwidth Allocation. Make sure that your Down/Up Bandwidth is correct. Do a speed test with just your modem to verify.
5. Delete all existing rules if you haven't added these before.
6. Set Anti-Buffer Bloat settings to both 100 and set it to never.  (for me even on "Never" I'm still capped to ABB slider for up/down).  Test this to see if you notice any improvement.  If not re-enable it. R1 users may want to keep ABB. For me, having tested this in several matches I am now "on time" with the server and on par with other players.  No more .5 seconds behind other players.
7. Make sure that the port for your console is actually in Upnp. Take note of it (it's usually 5 digit number).  Make sure that port corresponds with your console and not some other device.  It has been suggested to tie in that rule along within Traffic Prioritization to 3074-3075. Like this: Source: (port to your console) -> Destination: 3074-3075 and vise versa for your other rule. Results have been inconclusive and more testing is needed to determine if there is any impact doing so.  I've read that tying in your console port to the actual port ranges as well in both source and destination and destination to source. But again, further research is needed to determine if this actually works or not. 
8. Adjust Bandwidth Allocation as needed.
9. Set the following rules for Traffic Prioritization For UDP. It takes trial/error on your part between those games that use udp vs those that require tcp.
Source 3074-3075  -> Destination 3100-3500
Source 3100 - 3500 -> Destination 3074 - 3075 This is not needed for the actual game itself (it seems). You are prioritizing data about your stats more so then anything else. I've noticed at the end of the round that my rank up wouldn't animate (filling up the circle).  It would be instantaneous.  Albeit I was also prioritizing 2000-7000 udp as well.  This was/is unnecessary. Thanks @blackfirehawk for the tip.
Source 3074-3075 -> Destination 30000-45000
Source 30000-45000 -> Destination 3074-3075
Once added reboot the Router (to assure that the settings stick). Using the 1st set of rules.  And make sure that the port for your console shows up in Upnp.  If you don't use Upnp you may want to enable it, disable port forwarding (or delete the rules for them) reboot the router find your port for your console. Then add that port to port forwarding once you know what it is and disable upnp if you perfer port forwarding.  
Thanks to @kinel, @GHOST-1-EC and others for the research.
 
 
Example (Best k/d yet for me):

 

 
Disclaimer:
This is not a "tweak" to help you get an edge on other players. Nor will this help improve an already great hit rego experience.  If you are already consistently coming in 1st through 4th place in matches these settings may be of little benefit for you.  These settings are "suggested" as a base line and may require further research (IE: Wireshark, etc) on your part to get the optimal port ranges suited for your geo-location, etc.
 
EDIT 12/21/19:

It appears that after a few updates things get borked with Modern Warfare (and BO4).  I found out that in order to get better fluidity in my movement I had to reinstall the game after about 2-3 updates.  The ranges above does indeed work 3074-3075 30000-45000 (in 5000-8000 increments). And for me, keeping ABB to never using 75% of my download speed (lowering it more with bandwidth allocation) seems to really bring the game up to par. 
I've found nothing else that would allow me to be ahead of everyone else in movement, etc so far.  If anything else comes up I would update.

A latest internal firmware passed at 90% with two important issues being flagged that we're currently working on resolving so it depends how long that takes really, shouldn't be too long and then it should pass at 100% and we can proceed with a release. 450 should follow very closely after the 500.

We were already looking at it and it was caused by a complex problem that we were able to fix on a test router so it's looking like that fix will be applied to the next version.

Thanks, I appreciate you looking into this for a fix. For this to come up now after all this time...It's pretty hard pill to swallow. I do currently have 2.3.2.134 (installed several months ago...what a year now...).  I recall getting this error once before but it refreshed itself and went away (earlier this month).  I've used DUMAOS multiple times without issue. Even resync the cloud and for several days/weeks in/out of DumaOS.  But all of a sudden towards the end of this month I get that error.    So, I can only assume there was some sort of cloud update recently for the xr450. 
 

I'll have to check with the team regarding this, I know we've received a lot fewer reports of the issue with newer firmware versions. We've pretty much fixed it on the R2 as far as I can tell so should certainly be able to reduce it even further.

I've been noticing intermittent issues in COD with very little issues web surfing, watching videos etc.  Got an orange light for internet when I flicked the cat cable to the internet in the back.  I pulled cat cable out to look at the cable and connector and didn't notice anything.
https://i.ibb.co/qJZbgzb/Pic1.jpg
Didn't see anything at first glance.  But I know if I flick the cable I get an orange light on my router.  So I took it apart.
https://i.ibb.co/9hV5HYB/Pic2.jpg
And there I found just 1 wire almost severed off.  The white/brown wire.  Amazing too because I was, up to then, able to download at full speeds with seemingly no issues.  Amazing what one clipped wire in a cat cable can do and not do until it gets bad enough. 
 

I've been noticing intermittent issues in COD with very little issues web surfing, watching videos etc.  Got an orange light for internet when I flicked the cat cable to the internet in the back.  I pulled cat cable out to look at the cable and connector and didn't notice anything.
https://i.ibb.co/qJZbgzb/Pic1.jpg
Didn't see anything at first glance.  But I know if I flick the cable I get an orange light on my router.  So I took it apart.
https://i.ibb.co/9hV5HYB/Pic2.jpg
And there I found just 1 wire almost severed off.  The white/brown wire.  Amazing too because I was, up to then, able to download at full speeds with seemingly no issues.  Amazing what one clipped wire in a cat cable can do and not do until it gets bad enough. 
 

I've been noticing intermittent issues in COD with very little issues web surfing, watching videos etc.  Got an orange light for internet when I flicked the cat cable to the internet in the back.  I pulled cat cable out to look at the cable and connector and didn't notice anything.
https://i.ibb.co/qJZbgzb/Pic1.jpg
Didn't see anything at first glance.  But I know if I flick the cable I get an orange light on my router.  So I took it apart.
https://i.ibb.co/9hV5HYB/Pic2.jpg
And there I found just 1 wire almost severed off.  The white/brown wire.  Amazing too because I was, up to then, able to download at full speeds with seemingly no issues.  Amazing what one clipped wire in a cat cable can do and not do until it gets bad enough. 
 

I've been noticing intermittent issues in COD with very little issues web surfing, watching videos etc.  Got an orange light for internet when I flicked the cat cable to the internet in the back.  I pulled cat cable out to look at the cable and connector and didn't notice anything.
https://i.ibb.co/qJZbgzb/Pic1.jpg
Didn't see anything at first glance.  But I know if I flick the cable I get an orange light on my router.  So I took it apart.
https://i.ibb.co/9hV5HYB/Pic2.jpg
And there I found just 1 wire almost severed off.  The white/brown wire.  Amazing too because I was, up to then, able to download at full speeds with seemingly no issues.  Amazing what one clipped wire in a cat cable can do and not do until it gets bad enough. 
 

I make this thread with some level of reservation.  As it is unclear how those who are actually decent at the game will be EOMM'd.  Which has a tendency to mimic network problems. 
However, it will not be long before (in a few weeks) the 1st beta starts and I wanted to create a thread in which discussion can be had on game play impressions regarding:
Hit Registration
Input latency
Movement Speeds
Responsiveness
More importantly, will you be playing on dedicated servers or peer-to-peer?  To name a few.
Most importantly it's not clear what technical strides were made with the game's net code.  Will it be no different then prior COD games or has things gotten better or worst?  Will we see
120hz tick rate servers in MP/Warzone?
What kind of pings are you seeing while playing during peak hours?
Are you experiencing "Strict SBMM" not allowing you to move throughout the map?
Are you seeing the same players even though lobbies are disbanding?
Can you play splitscreen with family/friends? 
Can you play with your family on the same router/modem?
Can you play with friends on your friends list?
These are but a few of the questions that will be of value to COD veterans who plan on getting this game.  I am sure there are others. 
Until then, take care.
 

I make this thread with some level of reservation.  As it is unclear how those who are actually decent at the game will be EOMM'd.  Which has a tendency to mimic network problems. 
However, it will not be long before (in a few weeks) the 1st beta starts and I wanted to create a thread in which discussion can be had on game play impressions regarding:
Hit Registration
Input latency
Movement Speeds
Responsiveness
More importantly, will you be playing on dedicated servers or peer-to-peer?  To name a few.
Most importantly it's not clear what technical strides were made with the game's net code.  Will it be no different then prior COD games or has things gotten better or worst?  Will we see
120hz tick rate servers in MP/Warzone?
What kind of pings are you seeing while playing during peak hours?
Are you experiencing "Strict SBMM" not allowing you to move throughout the map?
Are you seeing the same players even though lobbies are disbanding?
Can you play splitscreen with family/friends? 
Can you play with your family on the same router/modem?
Can you play with friends on your friends list?
These are but a few of the questions that will be of value to COD veterans who plan on getting this game.  I am sure there are others. 
Until then, take care.
 

I make this thread with some level of reservation.  As it is unclear how those who are actually decent at the game will be EOMM'd.  Which has a tendency to mimic network problems. 
However, it will not be long before (in a few weeks) the 1st beta starts and I wanted to create a thread in which discussion can be had on game play impressions regarding:
Hit Registration
Input latency
Movement Speeds
Responsiveness
More importantly, will you be playing on dedicated servers or peer-to-peer?  To name a few.
Most importantly it's not clear what technical strides were made with the game's net code.  Will it be no different then prior COD games or has things gotten better or worst?  Will we see
120hz tick rate servers in MP/Warzone?
What kind of pings are you seeing while playing during peak hours?
Are you experiencing "Strict SBMM" not allowing you to move throughout the map?
Are you seeing the same players even though lobbies are disbanding?
Can you play splitscreen with family/friends? 
Can you play with your family on the same router/modem?
Can you play with friends on your friends list?
These are but a few of the questions that will be of value to COD veterans who plan on getting this game.  I am sure there are others. 
Until then, take care.
 

Great!

I know a lot of people look for "the best settings" for cod so I would like to share what have been working wonders for me lately.
After many tries and playing around with the DumaOs I finally found the hit detection I REALLY  like it feels like every single bullet is hitting all the time
Key Notes from my settings:
QoS Share Excess Down / Up is turned off (I have it like that because the XR500 is only for my gaming pc if you use multiple devices and wifi too I don't recommend it) I have fiber internet 300 / 300 up down my MTU is set to 1428 (was 1472) DNS is set to 1.1.1.1 / 1.0.0.1 (cloud flare) Works wonders on Warzone too Remember what my worked for me may not work for you, I'm just sharing  but feel free to experiment I live in Puerto Rico which means I'm always between 45-75 ping, not great but not horrible either (on Rebirth I get 35MS ping) Here are some screenshots of the settings and some gameplay videos, you be the judge:
NOTE: no guns from the gameplay have damage rounds on
 
The intention of this post is to help others achieve great and satisfying gameplay!😉
 
 
 
 
 

Call of Duty Vanguard 2022.06.12 - 20.43.00.04.DVR_Trim.mp4  
Call of Duty Vanguard 2022.06.11 - 10.00.22.02.DVR_Trim.mp4  
Call of Duty Vanguard 2022.06.11 - 02.31.01.02.DVR_Trim.mp4  
Call of Duty Vanguard 2022.06.07 - 19.54.00.02.DVR_Trim.mp4    
 
 
 
 

Yes absolutely!

You can absolutely enable those yes, you don't need to do anything on the R2 to allow it to work

Here is some regular gameplay before the dumaOS update 3.2 is finally release.  I haven't had any issue using dumaOS so far. 
Hit rego was fine.  Movement speed was average.  ADS was what I would expect for this lmg.  If this was in every match I wouldn't have an issue with COD.  Personally I don't like calling in nukes early as ending the game early ruins the fun for everyone else playing.
 

honestly,  No.  if I do  it would when the game  drops to 30 bucks.   or on a  trial weekend.  for the sake of my wallet I'm not buying  3 versions of the  game full priced more so for MW.  i couldn't stand MW1 only reason why I bought it after playing the beta was  because my boy said he would play it a lot ( spoiler he didn't and I had a coaster for most of the year)  .  my hopes are VERY LOW for MW2.

Thanks for sharing.  Different accounts with different behavior traits like this certainly adds a new twist to how rigged the game is now.  Do you have plans on following up between alt and main accounts when MW II is released?  I certainly would like to know if you are still experiencing this same issue or not. With the alleged claims they aren't doing that any more. 

I certainly wouldn't rule it out, but there's nothing in the works just yet I'm afraid!

I'm not in the mood for speculating hypotheticals.  So I decided to try this out myself to see what I noticed.  I went into this thinking this was at best placebo and didn't expect any real result to report or show.  I played 5 matches (back to back) in Cold War then went back to a regular match.  I then played 5 matches (back to back) in Vanguard then went back to a regular match.  I looked for any deviations in game play.  Again, do to the nature of that video I looked for something obvious.  Anything slight I left out of the equation.
And just as I thought the players were the same more or less.  I didn't find "bots" that didn't shoot back at me as found in those "influencer" youtube vids.  So, I don't know how those influencers are finding that kind of lobby.  Perhaps they lobby surf for quite a while or did something to their alt account I don't know.  However, after 5 matches in Cold War, (that I won with a k/d over 3) I went back to playing a regular match.
I instantly noticed a slow down in my movement reaction using the same character and weapon (same attachments).  Speed seems to be the same but initial movement was slowed down considerably.  Everything from running to aim down sight to going prone/crouch and firing the weapon. And there was something off with my shoots that didn't happen in the RB match.  In the RB match my shots were a laser beam.  But in the regular match they were all over the place with a combination of missing shots and shots simply not registering (as if my packets got to the server late and were disregarded). This caused me to  lose run-gun one-on-one gun fights that I should have won. With just about everyone on the opposite team.  Those were the most prevalent issues I noticed right away.  What I will say is that when I RB'd I won all 5 matches consecutively before going to a regular match.
Next, I played/won (again with a k/d over 3) 5 RB'd matches in Vanguard.  Then went back to regular matches. And, repeated the exact same experience I found in CW.  Except in Vanguard I couldn't see certain players at times.  When I watched the death cam they were there. But during the time of engagement they were invisible or very hard to see??  I caught myself saying "why didn't I see that person??" It only happened twice.  With 2 different opponents.  One was within 10' the other beyond 10'.  It was obvious so I reported on this. 
When I was playing RB'd matches they played "normal" to me.  I won and loss gun fights with no praise nor complaints.  It was only when I played a regular match after winning 5 in a row did I have complaints.  I have to admit those RB"d matched did give me some level of euphoria of the good ole days.  I just don't know how they were getting those bot lobbies. What I can say is that you have to try this if you are in the position to.  It is my opinion there is certainly something going on other then beating up "bots" when you reverse boost.
There are a few takeaways from this that I think should be mentioned.  Those 2 regular matches are not how I normally play the game.  It was the highest egregious form of hampering I've seen playing COD.  And, was unaware of how bad this game got. There is certainly something fishy going on when you win a few matches in a row.   I also didn't want to factor in how I normally play. As I wanted to isolate this experiment based on that video to see if I noticed a difference or not.  In those reverse boosted matches I only got 1 nuke in vanguard.  So, out of 10 match only 1 nuke for me.  However, I did have a lot of fun playing the other 9 matches then I did in my regular matches though.   I did find myself moving around those maps a whole lot more. And found myself liking maps and game modes I otherwise avoid playing before. 
However, those 2 matches that I loss were brutal.  I went 1.02 k/d in the 1st match and 0.50 k/d in the second match. Which is far below my usual average. I did get the impression that I was being held back more so then dealing with more experience players.

This certainly mirrors the video in the OP.

To be clear/transparent my experience has been playing core cod. I haven't gotten to warzone as of yet.  
However, in order to reverse boost you need a few essentials:
2 separate accounts from 2 different platforms. 
Another copy of the game (using a secondary account isn't as useful/accurate/consistent).  Don't use the same/similar name.
Make your second account a bot account with a k/d of 1.1 k/d or lower in Dom/TDM/Patrol/Kill Confirmed/Etc. This can take a few hours. You want 1 kill with every 10 or so deaths per match.  You only have to do this 1-2 times per game mode.  Now you can bypass this and have 0.00 k/d (you don't bother to create a bot account).  This makes your bot account very limited in weapon selection.  I've also found by doing this defaults you to booth RB and regular lobbies. 
Setup your netduma OS traffic prioritization accordingly.  Make sure UpNp is enabled. And it shows the port of both gaming platforms.  Make sure your platform is properly labeled in Device Manager. Setup your congestion control if you have other devices connected to your router.  If it's just your 2 gaming devices I suggest you disable QOS.
Friend your bot account. Search for lobbies with your bot account. Session join your main account to your bot account when your bot account found a lobby that is not full. Then back out your bot account from the lobby.
There are a few videos out there that explain it better though on youtube. Just look up "reverse boosting Vanguard" "reverse boosting Cold War".  What they don't tell you is that those easier lobbies don't last forever.
The 1st few reversed boost matches might be easier then normal.  However, as you progress in later RB matches opponents get "smarter" and matches will tighten up on you if you are not careful.  This is normal behavior as SBMM is kicking in as it should.  You simply don't get EOMM'd.
But when you beam a person for the first time will be intoxicating.  It's like you are playing another game.  All your bullets are connecting.  You try another weapon and realize that the RPM is too slow.  So you setup another weapon with a high rate of fire and beam another.  Then you notice that you are moving faster then before.  You blink your eyes more and 🤔.  Nope, you confirmed that for whatever reason you are now moving faster then you ever did before.  You get all getty and a smile will form on your face uncontrollably 😂🤣.  As you melee players for the 1st time 😲.  You play the entire match and regardless if you win/lose your thoughts can't help but wonder if this is what you've been missing all this time?  And with a sigh you realize you've have.  😡