- Supression; the blur effect on its own will be good enough
3d spotting
minimap reveal when not using suppressor
Auto-heal
Auto-repair
I'm sure if only these five things would be removed, it would make for a much better experience.
Bring back old punish system: Teamkill punish system *("page up"=forgive, "page down"=punish, too many TK's=automated kick)