Hell yah. Took us like 4 hours too, if I remember correctly.

I have yet to find one skull... :(

All of the skulls, their effects and locations are listed here:

http://www.highimpacthalo.org/showskull.php

It took us like 7 hours due to the fact that we were drinking and playing. Not to mention it was on legendary and everytime we advanced and got a checkpoint we took a shot or shotgunned a beer.

Now THAT'S a game I want to play!

Yea it was fun, but we both got trashed. It was bad.

By "bad", he means "spectacular".