Skull Name: Fire House. Skull Description: Is it me or is it hot in here. Skull Colour: Gold. Skull Location: The covenant level you have to jump in reverse order to the IWHBYD skull pattern through the hoops. Skull Effect: Only weapon in-game is firebombs. Skull Difficulty: Hard.
Skull name: Friendly Fire Isn't... Skull description: Remember kids! Friendly fire isn't Skull color: Silver Skull location: After destroying 343 Guilty Spark, follow the path up to Sergeant Johnson's warthog, but instead of hopping directly into the warthog, walk towards the far left and you should find a hidden mongoose. Underneath the mongoose is the skull. Skull effect: Your teammates attack you, your enemies attack you. This is going to be one tough ride! Skull difficulty: Hard Difficulty
Why not post in my own thread after so long? Skull name: Doppleganger Skull description: Why is it shooting purple? Skull color: Silver Skull location: Sierra 117, on a platform under where you free Srgt. Johnson, next to the river. Skull effect: Makes all weapons except melee weapons shoot Needler bullets. All guns, when picked up, are treated as Needlers, although retain the same animations as the gun being held. Melee weapons retain their original attacks. This effect applies only to you. All ally NPCs and enemies are unaffected. Skull difficulty: Really Hard, I would guess
Skull name: Lucky Number Seven Skull description: The last part of the plan is in progress... Skull color: Gold Skull location: Somewhere on the Ark Skull effect: There are 7 hunters in each level that has them. Skull difficulty: Hard
Skull name: Worms Skull description: Ohhh Noo Skull effect: Grunts Explode on HEadshots, blowing holes in the map and Leaving a small Comical Tombstone Skull colour: Silver Skull location: In a dumpster on the strom Skull difficulty: Easy
Skull Name: One-shot Skull Description: No shields for you! Skull Effect: Shields are forever disabled. Health recharges at regular rate Skull Location: Floodgate, along the vents after you come out of the factory (turn right) Skull Color: Gold Skull Difficulty: Medium to Hard (2.5x score with campaign meta scoring)
Skull name: Speed boost. Skull description: Speedz? Skull effect: All enemies, allies, nd vehicles are twice as fast. Skull location: Under Sgt. Jonson's hat (kill him and it falls out, any level with him killable). Skull color: Silver. Skull difficulty: Medium and up.
Skull name: Ba Ba Boom! Skull description: Muscle soreness in your arm Skull effect: cant shoot, and grenade regeneration Skull location: The Arch; on the wall next to the forward into dawn; Reach it by travelling in time (area on top of wall at scarab appearence) Skull color: gold Skull difficulty: medium