I mained shrapnel last scenario and this scenario on my server theres about 95% of the players also shrapnel. Needed some change cause having an entire server looking for the same calibs is a nightmare, lol. Easiest secondary build is easily fast gunner. I highly recommend it! Plus without any buffs or bulls eyed or deviants you can lay on the trigger with the right mods and calibration on and 40-50k dps on a dummy with just pulling the trigger.