Pls. Have you ever heard of flanking, smoke grenades... Have you ever even played coh1? Finally you have to think a little bit in the early game when playing allies.
Did you really play coh1? In coh1 Americans had plenty of different other units in early game to counter mg's (like mortar and snipers) but the most important think is that rifles accuracy while moving was higher than it is in coh2 and the damage received while moving was lower than it is in coh2.
Although I like the new mg's it's obvious that USF early game is weak against mg's and furthermore in late game USF sucks more. But yeah, let the axisfanboys -who cried reading the patch notes before the release- enjoy. But for sake don't compare FLANKING in coh2 with coh1 because it has nothing in common.
BTW, let me remind that in coh1 mg's could not cap territory while set up. So yeah, things were way different from coh2.