@CookiePuss completely disagree.
There are a lots of weapons that are absolutely useless in competetive match, therefore needs to be buffed. No good player would ever put his hands on this weapons.
Damn, its actually easier to name guns, that are not useless, rather than weapons that needs buff to be brought on lights of competetive fights.
All Pack of Revelations weapons are just a joke. U need to rly search for challenge or hate urself to play with these weapons.
Other than that: COBR-A, ISSR, S1-FA, Scoped N-TEC, EOL, DMR, NCR-762, S1-TIC, SHAW, SWARM, SBSR, DOW, Shredder SB, Agrotech ACES (smg), Colby M-1922, Norseman
All of listed weapons above need big or little buff (in TTK, damage, in how the weapon acts, effective range, amount of ammo in magazine/stored ammo, accuracy, recoil,). There is no doubt that you put yourself in the challenge if you play with any of these weapons, and it should not be like that.