on halo 3.. say for example you want a armour the requires a...

[noel d]

...skull...continue on details....? so after you geet a skull do you have to finish the level or do you just get the skull and it's already saved

 

[the dragon of solitude]

no u can leave the game and it will be already saved.

 

[The Love Ninja]

once you get the skull its saved and u can quite the level but you have to start at the begging of the level you cant start at a check point it wont work