When your adrenaline reaches 100 and it starts to flash, quickly tap Down(3), Up.
Berserk power-up
When your adrenaline reaches 100 and it starts to flash, quickly tap Up(4).
Citadel
In order not to get hurt(from the fall or an enemy" on the citadel level "Capture the Flag" drop the teleporter device into the hole over the enemy flag and use the fight trigger to activate the camera look for anyone in there if there is no one drop in and even if there is, take a chance at least you know where they are.
Combo with the shock rifle
To do a powerful combo attack with the shock rifle use the secondary fire which is the ball of energy and then when it is near your desired target fire the primary fire at it and watch them all die!
Cursed Level secrets
1. When you are in the swamp near the skull that's on the base of the wall there is a lift taking you to the top of the level where you will find some wooden beams to walk across. There is a gap in the middle which you must jump and then continue along the wooden beam to what seems like a wall. Carry on and you will disappear through the wall where you will find some goodies(tip, This is a great place for camping when playing split screen with your mates, Just wait for them to come near and surprise them from nowhere).
2. There is a walkway with holes in the floor and two skulls either side at the top of the entrance to it.
In the room before this with the two health pickups and the fallen down rocks you'll notice a section on the wall has a square outlined in it. This is a door in wich you'll find a Double Damage behind. take out your trusty assault rifle and shoot the block it lies behind.
Get shot into the air
If you are on an elevator going up, jump at the top. You will get shot into the air. On a certain capture the flag level, you can get to a secret area by doing this.
Invisibility power-up
When your adrenaline reaches 100 and it starts to flash, quickly tap Right(2), Left(2).
Regeneration power-up
When your adrenaline reaches 100 and it starts to flash, quickly tap Down(4).
Unlimited Tag Rifle
In order to do this cheat you must aim the tag rifle at the sky hold in the R trigger holding in the R trigger (also reported as press X+B) cycle thru your weapons 2 making sure to land back on your tag rile then let go of the R trigger now you have unlimited ammo for it. If you shoot the shots left will go to 0 but you will still have unlimited ammo.
P.S if you change weapons after you did the cheat it will go away and you will have to do it over again.
Wall jump
If there is a wall is to your right, jump up and to the right, then jump off the wall to your left.
