And in vCoH the maps were more open and the US had the jeep
Forgive me since I haven't played vcoh in years, but I'm pretty sure you didn't use jeeps to kill MG teams.
And yes, the maps made a difference, there's about 5 maps that suck as allies in 2v2 alone against MGs (Kharkov, Minsk, ettelbruck,bysrtaya,and arguably trois ponts) and about 4 for axis as well (both moscows, and I can't recall the other two I veto at this moment).