Or you can learn which door they utilize and plant mines, flares or even wire.
The people who do that can indeed give you some mp bleed. If I notice that he mines the doors I'll just pop them from outside the map so I don't lose them ^^
Falls in houses are insane, since you can keep them longer with 4 squad members. I won multiple key moments because of popping falls in buildings to kill them.
Don't let the charts fool you, top players know how to counter almost everything. If we take the player base outside of the 250 top range, things will go south very quickly.
We can't deny that certain factios are more noob proof and easier to win with than others. Above the top 250, skill level varies enormously, which makes exploiting noob friendly factions all the more potent. To add to this, having non linear factions, means we have certain factions that have a disadvantage tech wise from the very beginning, just for the sake of a unique feeling to the game. This in combination with the teching of the noob friendly factions, is a recipe for balance disasters.
I had a pretty good game against Zarok yesterday (Ost vs USF). It was a fairly even fight that I was slightly losing until I got a panzerwerfer. He got 2 Priest howitzers as his own arty but those two combined were not even half as effective as my single panzerwerfer. Granted, priest are pathetic arty pieces, but still.