I'm glad to read 4 280mp cost vanilla unit should always been beaten by 240mp HMG and 240mp grenadiers.
Now everything is cristal clear, Ostheer is designed to be the strongest faction early game while having cheapest dedicated units.
1270mp + 25fu invested, probably 30 or 60 ammo used to counter a 240mp unit in a building. And the best, the 240mp unit wasn't even supported.
Made my day
It should never be a thing of brute force and numbers applied to a position. This is a real time tactical strategy. If you are careless in your command and pit your group of units into a machine gun's line of fire, it should be punishing. The entire point is that the MG controls those crowds and careless movements.
The onus is on you to be tactical with your large investment in infantry. You think all the Americans and Soviets pinned down by MG-42's in the war said "No fair, MG is OP!" No, they figured out how to blind them and get around them so that they didn't have as many bullets flying at their heads!
Recon and then commit to a plan of action, don't just group together that many units and rush blindly into the fog of war and expect to not have to worry about anything.