I take it you don't play US?
Amerikaners need munitions for upgrades and constant use of abilities like grenades, ap ammo and smoke.
And Ostheer doesn't??
Riflemen demolish Grenadiers without upgrades, EVEN when Grenadiers have their LMGs.
Meanwhile, if you upgrade all your Grenadiers with LMGs, you have NO munitions for ANYTHING else, not even a single grenade or mine.
Meanwhile, USF infantry runs around grenading, upgrading to LMGs, and using smoke and still floats over 100 munitions at all times.
Watch literally any match in the entire game. Literally watch the latest 100 matches from the Propagandacast that feature Ostheer.
Ostheer is the only faction that's utterly, blatantly starved for munitions, especially in the early game, where using munitions is literally the only way to do anything against USF.