Ricky, Id give it a go! In your case the feature you need should out way the bugs.. And who knows you may not even experience any bugs! Worse case is you downgrade back to your current firmware..
Halo Infinite will be a game I cant even imagine.. Theres alot ridding on it.. Hope 343 has done there homework on it.. It should be a good game given the amount of time they have had.. Im mean we are talking what like 7 years! lol.. This will be the true test for 343.. Almost do or die type situation with them.. But I think they have been getting help from outside developers which my guess will be very good for them..
Hope you get Halo5 working for yah!
Zippy.