mp7 is actually my favorite SMG to buy
I love it, but yea AK is much better but M4 is a little even in my opinion if at least close-mid range

The problem with smgs is the armor pen, if the opponent has full armor smgs do such low dmg. Thats why even close m4 is better than smgs. As an anti eco gun smgs are just godlike, but other than forces and anti ecos, I'd never buy mp7. I mainly play mag7, deag or ump in force rounds anywyas, just dont like mp7 for some reason. But yeah, dont complain about peoples weapons, it hardly matters. I play aug most of my full buy rounds as ct .