All Working Warhammer 40,000: Fire Warrior Cheats - Playstation 2

Hard mode
Successfully complete the game under the normal difficulty setting to unlock the hard difficulty setting.

Level select
Successfully complete the game to unlock all levels under the same difficulty setting initially used.

Unlimited ammunition
Successfully complete the game under the normal difficulty setting with an "A" rank on each level (including the training level).

Unlimited health
Successfully complete the game under the hard difficulty setting with at least a "C" rank on each level (including the training level).