In team games tho I find them much harder to use than any other mainline
I play 4v4 alot (obv) and I just can't play USF for this reason. I always try to keep my units on the field and push the enemy etc. but I just never find a use for the riflemen. I'll be playing USF 20 minutes in and realize I have 2-3 riflemen squads back inside my base that I retreated and never reinforced and sent back to the frontline. They're just worthless in fours against Obers, LMG grens, g4usies, etc. I just forget about them. I do NOT have this issue nearly as much with any other faction.