[KurganQ2]

German sniper can never miss...even mid air leaping from windows

An ally can only be hit from the front (they appear to have no animation for being hit from behind)

German snipers don't have bolt action rifles or they can load much quicker than we can.

A german can see through any foliage and hit you every time.

You can fire through broken out windows but grenades bounce off them...like an invisible shield is there.

[poseyj]

most windows, you can throw grenades through. although some, neither bullets nor grenades can go through.

[KurganQ2]

bullets go through, grenades bounch off open air...

2 more:

snipers on the other sides of walls are floating in space (there is no ground)...

your comrades can stand in the open all day sometimes and not get sniped, if you poke an eyeball around the corner you get hit (and they are standing right there in plain view)