Grenade sniping

Grenade Sniping is a trick that requires precise and flawless accuracy done in Halo: Combat Evolved. Have the Infinite Grenades option turned on and choose a level like Longest and climb up a ladder to a ledge. Then, keep throwing grenades everywhere nonstop. This makes you a hard target to get to, unless another player has a Sniper Rifle or yet another long range weapon.