Stream Sniping
Intentionally playing a game against a streamer
Call of Duty
YF
You fail
Haxor
‘Haxor’ means ‘Hacker’
BLOPS
Call of Duty: Black Ops
Mag
Magazine for a firearm
CQC
Close-quarters combat
3arc
3arc: Treyarch
Pwnage
Ownage
FTL
For the loss
LOS
Line of sight
Choob
A good player who chooses to play poorly on purpose
IGL
In-game leader
Oneshot
Winning on the first try
Uber
Top-notch
Kgo
Ok, go