Suicidal Jackal

In the Halo 2 level Outskirts, there is a glitch where you can see a Jackal Sniper kill himself.

To see him, play through the level normally, but when you are past the alley way with the drones, proceed to the next alley, go through it a bit and stop, turn left and you should see a jackal sniper. Do not kill him. Go through the level with him alive and trigger a checkpoint. Go back to the Jackal. You should see him fall over and die by himself. It only works when you see him, and he sees you.