I love that everyone hates "Quick scoping". That's not a "thing" that can be removed.  It's a playstyle.  I could just as easily say the need to get rid of "drop shotting" because it's just not fair and I can't aim If you run into a quickscoper, break out your q/s class and out gun him. Same way if you run into a tryhard drop shotter you break out your tryhard class and out gun them.  That's what I do. 

Get rid of:

Machine Pistols:  Who needs overkill when you have a built in overkill with your secondary.

Death Streaks:  Sorry but they are the worst attribute in this game.  You mean to tell me the guy that goes 18-48 can get an escort airdrop with stealth/jugg/emp??  That seems fair right?

Support Streak:  If you don't remove it...only allow it in Objective modes.  Too many cheap players running Advanced AUV/Stealth/Escort.  Also it's called a streak???  You die 2 times to every kill, I don't see a streak anywhere.  The developers are giving the good players too much of a handicap now.