Laser in Story.
This a very little known about secret.
On little resistance, do everything until you start going into trenches.
Then turn around and go back to the beach.
You need to do this in a specific puddle of water.
All I can tell you is that it's near the end of the beach.
You simply jump into the puddle and kneel down.
You should hear a deep rumbling and strange voices.
Four stone lions rise from the sand.
In each of their mouths is a blaster.
Use the action button to exchange it.
You can go back and get as much ammo as you want, as it's unlimited.
This definitely works in Co-O, and probably works in single.
Can't find the puddle?
Add me,CHIKABLAM,and I'll show you.
Added by: CRAZY CHEATS Feb 6th 2009, ID#1361