Oh Berlin i dont play to messy for me, i send my assaulter in one at a time to counter snipe to reveal their Pos, maybe thats why it works better for me.
You clearly dont snipe enough you need good fields of fire for that. Tunisia and Stalingrad are the best for that. And one smoke nade goes a long way. You are an automatic whore nothing wrong with that. Wiping a room full of dudes with an PPSH is fun. But in Stalingrad you have to earn it, wich isnt that hard even when you get used to it.
Flamers are great in that campaing as well just smoke youre approach and clear windows on your flanks before the charge, its called tactics.
Wich isnt needed when you can eat bullets with a 35% health perk wich must be removed btw.
The part with holding brath id actually support, i do that anyway so id have an advantage if that would be introduced.
Automatics will most likely ruin the game as they are now (in my opinion). Not many people are bold enough to state it.