LMG Infinte Ammo
To be able to get this you must first complete the marksman challange for any LMG to unlock the bipod. When you have the bipod go to a good spot on any map, lie down and deploy the bipod. (hold x). Then tap the left stick to the left once (if you move that stick again, it wont work). you now have infinte ammo for your LMG. you can move the right stick and shoot, just dont touch the left one, stand up, or take the bipod off after you have tapped it left. it only works if you have the bipod deployed.
Added by: Sanzano Jul 16th 2010, ID#6033