WH40K: Inquisitor Martyr

[Jarhead0331]

Is it just me or is the Grav Gun insanely OP?  I got a relic one and tried it out, and now I'm just advancing solo through maps spamming the third fire button and watching things just die en mass.  It's so rough I swapped out my melee secondary weapon for a Rare level Grav Gun, and now I'm just spamming until I overheat and swap guns.

Who has the Grav Gun?
Is it a new weapon for one of the already existing classes?

I use them on occassion...I'm a level 34 heavy gunner Crusader. The grav guns come in the form of 2-handed rifles and a single handed pistol, as well. They are powerful, but I still prefer the purifying flame of the heavy flamer, or even the righteous bolt issued by a bolt gun or heavy bolter.