I do not see it as op at all. As one of the old major PvPers, I would've noticed. I already nerfed the **** out of it when I thought it was op, but as it stands, it's perfectly fine.
If you can't avoid a bullet in PvP, you ought to leave the room. Ammo is spammed, if you get hit by one out of 10-20, you deserve the damage you take. If you get hit by every 2, you just plain suck and should stop complaining about guns.
As for sector, it's a nice treat for those who go the extra mile to help the game. Dark meto is, and will be for a long time, the ultimate gun.
In short, no. I think if you're finding it a problem, you're just horrible at the game. I was fine with dark meto when it hit for 2k+ damage. I'm not removing it for a small 500.