Unlimted ammo?

Oh! that's so frustrating. The ONLY, and i stress ONLY, way to get unlimited ammo is to upgrade a weapon all the way, then beat the game. NOTHING in thig game can be unlocked without beating the game.

beat the game and max out the weapon then go to bonus, and use the points to get unlimted ammo

you have to upgrade a weopeons to the max and go to bonus there are no way athoter than this

Say you want unlimited ammo for the jailbreaker, you have to fully upgrade all aspects of that weapon (capacity, firepower etc). Once you have fully upgraded the weapon in question, AND completed the game, you can then use your exchange points to unlock unlimited ammo for this weapon in the bonus features menu. This can be done for just about all weapons, excep tthe grenade launcher and rocket launcher/RPG. To get infinate ammo for the rocket launcher, the completion time of all the games chapters must add up to less than 5 hours. If you manage to lower all the times of your chapters to less than 5 hours you can again use your exchange points to unlock the infinate ammo rocket launcher under the bonus features menu. Hope this helps

Use this cheat code that I found in game x,o,x,o,L1,R1,up,down,o,o this should get you unlimited ammo for all guns