Like GJP said, the game just came out and believe me this might be the worst release COD has done that I have seen and I have been paying since WaW.
I don't blame any of the extreme lag I have got playing BO3 on Netduma at all, its all server side and Microsoft has been having issues also.
I also want to say that with my tweaks I have been having some awesome games.
This is my setup:
Modem>R1>XBOX ONE. (50down5up) but it peaks higher so in Netduma I put my bandwidth as 60/10.
I only have my console, laptop and sometimes phone connected to the R1 with 90% to the xbox and 10 split to the other two.
I have it set to reactive right now but have used preemptive with no noticeable difference.
Congestion control is set to 8% down and 100% up. Verified working through xbox diagnostics.
MTU was set to auto before (I think 1495) but then I set it to 1364 but had issues getting in a lobby. (could be server issues)
Now set to 1375 with very good results.
My Geo filter is set for 419 miles near los angeles and ping assist is set to 35ms.
Overall the issues going on are most likely server related and not the Netduma router, that just doesn't make any sense.
If anyone knows of any other tweaks I can do to make the connection better please let me know.
If you try my settings and you are in California, let me know how they worked for you.