Metal Gear Solid 3 Walkthrough/How to Play

The Backpack
The Backpack is a standard-issue U.S. Army backpack used by Naked Snake in Metal Gear Solid 3: Snake Eater. It is used to carry all of Snake's weapons and items.

The Virtuious Mission
When Snake lands in the jungle, his backpack will get caught on a branch. When you collect it, you receive the Mk. 22 tranq gun. If you are playing on very easy, or finished the last playthrough with a "Markhor" rank, you will find the EZ gun, which is an infinite ammo tranq gun. If you are on a file where you have beaten the game once before, you'll find the Patriot Assault Weapon, which has infinite ammo, and if you chose the gun on the left during the fight with Ocelot on the WiG, you'll have a Single Action Army, which fires ricochet bullets.

Stamina
The more items you keep in the backpack and out of the L2 and R2 menus, the slower Snake's stamina will decrease.