Glitch Maybe?

Have anyone else experience this glitch?


Both my Sniper and Shotgun Mastery already like 97%
So, I play with my AWP on Training Camp, Then my Sniper mastery rank up.
After that I decide to rank up my shotgun mastery, When I shoot it. I notice only 1 Bullet come out and the damage is like AWP.
Shot while moving, the bullet go straight.

the shotgun return to normal after the match end.

Recoil bug ;D Lagging maybe .. Happen to me once

its only a bug..xD

Bug . happend to me before

same it happened to me and they said that i am hacker i said that idunno wat happened they dun belive me and tell me to play fair.