When playing Single-Player, press the tilde (~) button and type in any of the
vivalahelvig Invulnerability bighugmug Full Ammo/All weapons heehoo Fly Mode camera1 switch camera modes camera2 switch camera modes camera3 switch camera modes
NOTE: In certain parts of the game, invulnerabilty may switch off when moving into a new area, and in some levels, you can't use the weapons when you wear a disguise, where you are limited to a silenced pistol.
If you go in the Red Faction file folder and go to Data then go to movies. You'll see movies in this folder but theirs one the says technochunk ( it says Blink Video on the picture of the icon ) this is a quick funny video about Red Faction.
Thanks to Revolution readers Dark_Gantros, Udzzis 2001, Riga, [USNS]CIC Zeccy, Alex Sokolov and [!llusion]ChRoNiC!