A glitch letting you hit an enemy twice with a laser shot.
Hitting a specific enemy titan model spot while the titan is moving will cause the laser shot to deal damage twice. The running theory is that Respawn didn't fully fit the stationary hitbox inside the moving one. Basically, Titans have 2 animations, one for moving and one for standing still. Laser shot by default has splash, so it probably hits the moving hitbox and then edge splashes into an exposed part of the stationary hitbox.