I was playing as a red on Chasm, and from the control room outside, I saw an enemy pop out from behind a box. Spraying that area with my MP5, I dashed across the ramp with my RC50 at hip level. I acidentally hit the mouse button, the bullet hits the wall and goes through. The next thing I saw was the last player countdown starting. I actually killed someone, through a wall, from the hip, while running.