The fukking DMR in Warzone. There have been a lot of broken metas in Warzone but DMRZone takes the cake. It was two headshots or three body shots to knock someone with unlimited range. I'm not sure it even took a full clip to blow up a Bertha.
The akimbo Diamattis were also busted at the time so you could get ghost off rip. Those things were an instant kill up close. You literally couldn't react if the other person shot first.
And still, I'd take that bullshyt over what we have today in a heartbeat.