can someone tell me what all the skulls do in halo 3 when u activate them?

[licence2_k1ll]

whatever skull u know about, and u know what it does when it is turned on please tell me
i have every skull, but i need to know what they do

 

[evan]

here. this site has some, i dont know if its all though. i have only found one myself. haha.

hope it helps.

 

[lundqvist30135]

well wat they said is true an once you got all the skulls u unlock this awesome armor called hayabusa