Cheats, Codes & FAQs
Right before you end the last level, right before you go down the slope with the ramp, on the right side is a rock formation. Get out of the Warthog and go around the corner. There you shall see a grunt talkin smack about the Master Chief.
You can only claim/collect the skulls under the Normal, Heroic or Legendary difficulty settings. You must start from the beginning of the mission. You will not be able to see the skulls if you load from a checkpoint. In Co-op mode, as soon as one player picks the skull up, all players will receive the achievement. Not all skulls earn an achievement; only nine of them do so. To use skulls, press X at the lobby screen. This will give you a bonus multiplier for co-op and go towards earning the Guerrilla, Demon, etc. achievements.
Grunt Birthday Party skull
Effect: Headshots cause enemies to explode.
Where to find: Crow's Nest
Right after the first objective, while en route to the barracks, you will fall down onto a pipe. At the end of this pipe, look over the edge to see a small space a few feet below you. You must simply drop over and as quicly as you can, pull back to land under the floor you were just on. After that, the skull will be at the end.
Armor Permutations Unlockables
Body Pieces: Spartan marked with (S) and Elite marked with (E).
The 7 Terminals: The Ark: tip 1
Start the mission and once you enter the first building take a left into another door and now you should be in a curved corridor. On the inside is a Terminal.
The 7 Terminals: The Ark: tip 2
After activating the bridge to let your comrades accross the gap, do a 180 and you should see it. (it does not open until you activate the bridge)
The 7 Terminals: The Ark: tip 3
In the third building after defeating the scarab, kill the group of sleeping covenant, then follow the corridor downwards. Once you reach a door in front that is locked, immediately on the left there's an open door. Go through and walk straight off, then do a 180 to find a secret room. It is in there."
The 7 Terminals: The Covenant: Tip 1
When in the first tower standing on the lift, face the access panel and turn left. Jump over and it's right there.
The 7 Terminals: The Covenant: Tip 2
Land your hornet on the second tower, walk towards the entrance but when you see the locked door, do a 180. Should be right in front of you.
The 7 Terminals: The Covenant: Tip 3
When in the third tower standing on the lift, face the access panel and turn right. Jump over and it's right there."
The 7 Terminals: Halo:
After reaching the end of the first cave, hug the right wall and you will see a building. Jump up onto the walkway and hang a left once inside. It's right there.
Sierra 117: Monkeys with teddy bear:
After you come into contact with the snipers in the woods, follow along the left rock path. You will find a strange family of monkeys holding a teddy bear.
When playing in Co-op under the Legendary difficulty setting, it is best to have one player keep their distance from the enemy at all times. By doing this, if the rest of the players die they will respawn around the player that is farther back, rather than having to restart the checkpoint.
If you ever are on Xbox Live and are searching in Matchmaking and there's a a Bungie/Microsoft employee in your pre- game lobby, see if he/ she could teach you how to mod. My friend did this and he showed me the map he and the person from Bungie modded. It was insane! For instance, if you go to Bungie.net, there is a map you can download for free that is called Seven Elephants that is on Sandtrap and obviously has 7 elephants. They're all thrown in around the alley between the gap of the 2 bridges.