They didn't rarely need to buy an ugrade, they just had a choice. Before I could choose to opt out of grenades and rely on just flanking. Which would free up munitions for bars, zooks. Or not get any and use the munitions on things like mines, light vehicles, or abilities like IR artillery.
the USF have grenade, bar, and bazooka upgrade, and last patch the USF player rarely need any of them. This was precisely the problem.
Granted, part of the reason is the bazooka and bar are over priced, but USF can usually ignore the upgrades and just cruise straight to Sherman.
The USF should really be forced to buy some type of upgrade to keep up with the wehr. Especially since the wehr are pretty dependent on their hmg42 and lmg42.
The wehr delay the sherman by forcing the USF to buy the bars or grenade. This allow the wehr to buy the stug/pziv around the same time as the jackson/sherman, not after.
That's the point I wasn't forced into getting anything. You had to spend your munitions on something, but it didn't have to be any one thing. Now you are forced into getting grenades every single time, and spend a large majority of your munitions on them. Which directly takes away from the variety of the entire US faction.