I understand what they're doing with the zoom, and I agree with it. OTOH, I wish they would remove that feature from smg's. These are ASSAULT class weapons. People love 'em because they can use the zoom to take out (with a headshot) about any target a rifleman can and, if they miss, hey, just keep up the bursts.
While I realise that IRL MP40's had that capability to at least 100m, in the game, they can do this at 200m, which is really getting to the max of what a rifleman can hit in game. Maybe on the stretching it end that may have been realistic for these weapons, but it is not realistic to have such a large proportion of automatic weapons in relation to bolt action rifles.
At the time of Stalingrad, a Wehrmacht squad would have one automatic weapon to every 8 Kar98's -- and that's assuming they had a full complement of MP40's and MG34's, which was practically NEVER the case.
But, keeping the 8-1 ratio for this purpose, in a 32 player game, that would leave room for ONE MP40, and ONE lmg. There are so many auto and semi auto weapons in game that you can put them together and make an entire SQUAD out of them. Think about that.