"Since Black Ops 3 is not going to recieve any more updates whatsoever, i made a general tier list for it concentrated around the PC platform. Quick rundown:

SS - God Tier, busted weapons
S- Extremely Viable, will overpower in gunfights.
A - Viable, will win most gun fights
B - Somewhat viable, somewhat situational, will win some gunfights.
C - Situational, can win gunfights but rarely
D - Barely Viable, too situational
F - Trash. Reserved.

Each tier is seperated into two rows, top row is like a + mark, and lower is a - mark. (e.g. A+, B-, etc)."