Everyone I play with, we are all tired of this mess. OP is correct. You see some enemy, he doesn't see you, you unload a whole 30rnd mag into him, he turns and then 1 shots you. I have a few kills where 4 bullets killed someone. I've gotten a kill about 150 with 1 shot on a shotty with slugs, I could barely see the guy on the 2nd level as well and killed him. I shouldn't have been able to do that.
I could go on and on like the rest of you with examples. EA/Dice doesn't care about anyone, they cared about getting their COD store up and running though.