The Friendly Brutes is a glitch that makes the Brutes regard the player as an ally.
On the Halo 3 level Crow's Nest, where Miranda Keyes, Sergeant Johnson and Thel 'Vadamee are aboard the last Pelican dropship leaving the base, set a deployable cover outside the door that the second wave of Jump Pack Brutes emerge from. Kill the Brutes that are present, and return to the deployable cover. Disable the shield, but do not destroy it, to enter the room. The Brutes present will no longer regard the player as an enemy and although they will look at the player, they will not attack. If the deployable cover is destroyed, they will continue outside the chamber and will regard the player as an enemy. This is also possible on Tsavo Highway, before the first tunnel. You must kill every enemy (including the Drones) and then go into the tower near the cliff. The Brute that is up there will usually leave you alone. This only happens on Easy or Normal.
Notes
- This will work with other Brutes in other levels, and may also work with other enemies.
- They will not attack until they pass the door which is where they are scripted to pass through.