Floodgate - Funny Campaign Glitch

Start a Campaign on the beginning of Floodgate (you might want to set difficulty to easy so the flood aren't much of a problem) When you reach the part when you first encounter the flood, there should be some concrete roadblocks. There should be a Generator behind a fence. Jump on top of the barrier closest to the Generator, and from there jump onto the Generator and look to your right once you are on top of it. There is a concrete wall. Crouch-jump from the Generator onto the wall. This may take awhile, as you have to jump right off the edge or you won't make it. Once you make it over the wall, you can float around. If you look down, you should see a destroyed vehicle. If you float too far away from it you stop floating, but if you get near it and jump you start floating again. You will notice some trees and buildings. You can walk through them if you want. Happy glitch hunting. 

ThunderStorm Skull

On Normal Heroic or legendary and on The Covenant get to the Hornets and fly up to tower closest to you and walk up to the ledge and there should be a skull.

Boosting Achievments

Get 3 or 4 friends and tell them to put on chinese and go into matchmaking so it will bring you and your friends in the same game and you can do achievments.

Helmets

* Mark VI: Default Unlocked
* C.Q.B.: Default Unlocked
* E.V.A.: Complete Campaign on Normal, Heroic, or Legendary
* E.O.D.: Complete Campaign on Legendary
* Hayabusa: Collect all skulls gold and silver
* Security: Get 1000 achievement points in Halo 3
* Scout: Perform "Used Car Salesman" Achievement
* ODST: Perform "Spartan Graduate" Achievement
* Mark V: Perform "UNSC Spartan" Achievement
* Rogue: Perform "Spartan Officer" Achievement
* Recon: Bungie Employees only
* Flaming Helmet: Locate a secert skull

Shoulders

* Mark VI: Default Unlocked
* C.Q.B.: Default Unlocked
* E.V.A.: Complete The Ark on Normal, Heroic, or Legendary
* E.O.D.: Complete The Ark on Legendary
* Hayabusa: Collect 9 skulls
* Security: Earn 750 out of 1000 Gamerscore Points for Halo 3
* Scout: Perform "Mongoose Mowdown" Achievement
* Recon: Bungie Employees only

Chest Armor

* Mark VI: Default Unlocked
* CQB: Default Unlocked
* EVA: Complete Tsavo Highway on Normal, Heroic, or Legendary
* Hayabusa: Collect 5 skulls
o Katana (Add-On): Get 1000 achievement points in Halo 3
* EOD: Complete Tsavo Highway on Legendary
* Scout: Perform "Too Close to the Sun" Achievement
* Recon: Bungie Employees only

Helmets

* Combat: Default Unlocked
* Assault: Default Unlocked
* Flight: Complete Campaign on Heroic or Legendary
* Ascetic: Perform "Steppin' Razor" Achievement
* Commando: Perform "Overkill" Achievement

Shoulder Armor

* Combat: Default Unlocked
* Assault: Default Unlocked
* Flight: Complete The Ark on Heroic or "The Storm" on Legendary
* Ascetic: Perform "Overkill" Achievement
* Commando: Perform "Killing Frenzy" Achievement

Body Armor

* Combat: Default Unlocked
* Assault: Default Unlocked
* Flight: Complete Tsavo Highway on Heroic or Legendary
* Ascetic: Perform "Up Close and Personal" Achievement
* Commando: Perform "Triple Kill" Achievement

Bungies Jumping Idiot

On the map Halo find the terminal and turn around and mine or grenade jump the the far ledge and duck and jump in the little ledge and in the corner  there is a Jumping Idiot in his underwhere.  

Mythic Skull

On the map Halo stay on the right the whole level and there is a path with a skull at the end on the right.

Chief Bullet

On any map fire Assault Rife and get the film and look at the bullet and it will say Chiefs Bullet on the back.

Big Mouth Grunt

On the map Halo at the end of the game stop at the last Big Pole and in the little corner there is a grunt that never stops taking to you.

Steppin Razor Trick

When you want the steppin razor go to a match of swords and tell people not to kill so you can get it but people dont always respond to that so keep trying it.

Monkey People and The Great Teddy Bear

On the first level at the end of Jackle Forest at the rocks at the end jump on them and follow the rocks on the wall and there is 4 Monkey People and a teddy bear.

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