Pump Yer Brakes is an achievement in Halo 4.[1] It is obtained by scoring the killing blow on a Mantis.


  • The easiest way to do this is to board a Mantis and plant a grenade in it,but make sure that there are few or no teammates around that could kill the Mantis before the grenade goes off.
  • This achievement can be done in tandem with David and Goliath.


  1. Halo Waypoint - Halo 4 Crimson Map Pack Achievements