Pick tank, rate of fire and maybe armor then crit.. walk against any black wall say on spunky where assaults and gunners try to tap the ball on the railing.. walk up to the wall on an angle and burn through the wall! (class endorsements dont matter but it makes the jet gun beast for burning) this also works along the wall where supports hide the firebase by the jump pad (yes i told most of the world but now everyone can do it and stop those pests from taking down your ball and putting that bomb there when you play peekaboo.)