Cheats, Codes & FAQs
Black eye skull:
From the start of the "Crow's Nest" mission, without moving anything, you can see a massive pipe above you. Walk up the stairs, then up the next set. Turn to your left and jump up on the shelf unit. From there, jump to the red cross beam then up onto the pipe. From there, just walk to the end. Walk over the Black Eye Skull to claim it. You do not have to pick this skull up, it does it automatically. Its description reads "Bash your way to better health." Your shield will not auto-recharge anymore, and you must kill an enemy with a melee attack.
After freeing Johnson and killing all the Covenant that come in the Phantoms in the "Sierra 117" mission, walk to the Pelican that arrives to pick you up. Face the cargo bay, but instead of hopping in turn left and follow the path. Once you hit the wall, jump up to your right to eventually reach a walkway. Walk all the way to the end. Take a left, then a right. At the end of this a little bit to the right is a dark corner. Press Up to turn your light on and you should see the skull. If you cannot see it you are probably standing on it. Its description reads "Death carries a heavy price...". Instead of only losing 25 points when you die, you will lose 75.
Follow the normal path in the "Halo" mission until you reach a cave. Hug the right wall until it branches off into a small path. At the end of this path is some rubble, and in front is the skull. Its description reads "Coverage under the Covenant health plan." It gives a 3x score multiplier for all kills.
Blind skull, Description: "Shoot from the hip"- Stage: First stage
When you get to the area where you see the Phantom overhead (one of the marines will point it out) jump over the rocks and keep following the path on the right. When you get to the cliff there will be a rock over of the side. The skull is on the end of the rock. Note: This skull has to be Activated before you start a Campaign map.
Tough Luck skull: Effect: Enemies do saving throws
Where to find: Tsavo Highway- On Tsavo Highway, about halfway through the mission (right after you are forced to walk through a large blue barrier), you will come out of a tunnel on the highway, and see a large pipeline on your left. Drop down in between the two, and run to the wall in front of you. Follow the wall all the way to where it connects with the cliff on your right, and turn to the left. There should be a few ledges--simply crouch jump from ledge to ledge, and the last one should have the "Tough Luck" skull on it.
Cowbell skull: Effect: Explosive force increased (sputnik from H2)
Level: The Ark- Location: First pick up a grav lift from the small building near where you fight the scarab. Now proceed through the level until you reach the second sloping hallway (stairway), you should see some partitioned risers (platforms) halfway down. The skull is on the top level. Toss the grav-lift on the right side of the hall so it lands on the fourth little green dot from the door. Then run, jump, and use the grav-lift to propel you to the top. You should reach a ckeckpoint just as you enter the room so it you miss just try again.
Thunderstorm skull: Effect: "Field promotions for everyone!" -- Upgrades enemies to their stronger v
Mission: The Covenant- After you shut down tower 1 and get access to the hornet, fly to tower 2 (the one the arbiter shut down). While walking up the stairs, go to the middle part that connects both and there should be a stair leading up to a platform where the skull is.
Catch skull: Effect: "Pull pin. Count to three. Throw." -- Every NPC carries two grenades and throws
Mission: The Storm- You can get this by performing a grenade jump off a warthog, or grab a ghost and go back to the ramp from which you first came out, using the ghost to push a big square crate back over to the front of the silo pod that the skull is on top of, then use the box as a place to jump from.
Fog skull: Effect: "You’ll miss those eyes in the back of your head." -- Your motion sensor disappea
Mission: Floodgate- As you are walking down from the anti-air gun you destroyed in the previous mission, you encounter a ramp (next to a missile launcher). Around this ramp, you hit a checkpoint. At this point, you should also hear a marine yelling, “There! Over There!”. Look up and to the right, directly at the roof of the building next to the missle launcher. There is a single flood form (not to be mistaken with the two other flood forms jumping in front of you) which is holding the skull. Kill him before he jumps, and he will drop the skull down to the ground where you can retrieve it. Too early, and the skull will get stuck on the roof though, so just time it carefully.
Famine skull: Effect: "Trust us. Bring a magazine." -- Dropped weapons will have very little ammo co
Mission: The Ark- When you first go into the valley to the right after the wrecked phantom, look to your left where you will see a huge boulder. Use a ghost and get to the side of the boulder that is closest to the bridge overhead. It is easy to pilot the ghost up the side of the wall using the thrust. To get the skull, pilot 2 ghosts up the wall to the top of the bridge and stack them one on top of another next to the beam where the skull is placed. Simply jump from the top of the ghosts towards the skull and land on the beam.
Tilt skull: Effect: "What was once resistant is now immunity" -- Enemies have different body parts t
Mission: Cortana- When in the circular type room with all the flood look for a small structure piece next to two archways, jump on top if it and up on the rocks to the top left, turn left and jump up again, then do a 180 and jump to the rocks across from you. After that follow the the rock sticking out and leading up on top of of the original circular room, the skull will be in a pile of blood.
Complete the final mission under the Legendary difficulty setting.
(S) EOD body
Complete Tsavo Highway on Legendary
(S) Scout body
Unlock "Too Close to the Sun" Achievement
(E) Flight body
Complete Tsavo Highway On Herioic or Legendary
(E) Ascetic body
Unlock "Up Close and Personal" Achievement
(E) Commando body
Unlock "Triple Kill" Achievement
(S) EVA shoulders
Complete The Ark on Normal difficulty or higher.
(S) EVA head
Complete Campaign mode on Normal
(S) EOD shoulders
Complete The Ark on Legendary difficulty
(S) EOD head
Complete Campaign mode on Legendary Difficulty
(S) Security shoulders
Earn 750 Gamerscore points.
(S) Security head
Earn 1000 Gamerscore points.
(S) Scout shoulders
Unlock "We're in for Some Chop" Achievment
(S) Scout head
Unlock "Used Car Salesman" Achievment
(S) Mark V head
Unlock "UNSC Spartan" Achievment
(S) ODST head
Unlock "Spartan Graduate" Achievment
(S) Rogue head
Unlock "Spartan Officer" Achievment
(E) Flight shoulders
Complete The Ark on Heroic difficulty or higher.
(E) Flight head
Complete Campaign mode on Heroic difficulty.
(E) Ascetic shoulders
Unlock "Overkill" Achievment
(E) Ascetic head
Unlock "Steppin' Razor" Achievment
(E) Commando shoulders
Unlock "Killing Frenzy" Achievment
(E) Commando head
Unlock "Overkill" Achievment
Collect 6 hidden skulls
Collect 9 hidden skulls
Collect 13 hidden skulls
get 5 skulls for the chest 9 skulls for the shoulders and get all 13 skulls for the the head
unlock flaming recon head
you have to be a bungie member and the flame is a chest piece