US Unit Preservation Company:
2CP: A scout Counter-Sniper hits the field. A sniper who cant kill anything else than the wehr sniper, but insta-hits him and has double the LoS of his prey
(not sure if makin him able to only kill/attack a single type of unit would be possible/easy enough to implement, if not would only gonna be a dedicated scout)
2CP: Rifles can be upgraded witk UKF healing kits

and/or with the smoke on retreat pop
3CP: Rear Echelons can be equipped with Springfield bolt actions, to become good support at long range (Or perhaps rifles to change their playstyle into a more safe and defensive one)
(Im not sure if there even is a scope-less Springfield in the game. They´d either have to give them scoped ones, or just give them Lee-Enfields but write Springfield in the upgrade description and pray that no one notices
4CP: Recon plane equipped with a mine-sweeper will loiter above an area and reveal enemy units and mines
9CP: Additional armor upgrades for Shermans and Jacksons