If you come across a level you don’t want to play then during gameplay press the ‘~’ (tilde) key to bring up the console and then enter the following passwords without the quotes to skip that level in the game.
Unlock Ammo Depot Level:
Type ‘Map rammo2′.
Unlock Lower Mines Level:
Type ‘Map rmine1′.
Unlock Munitions Plant Level:
Type ‘Map rammo1′.
Unlock Research Hangar Level:
Type ‘Map rhangar1′.
Unlock Tactical Command Level:
Type ‘Map rbase2′.
Unlock Mine Engineering Level:
Type ‘Map rmine2′.
Unlock Tectonic Stabilizer Level:
Type ‘Map rlava2′.
Unlock Maintenance Hangars Level:
Type ‘Map rhangar2′.
Unlock Eastern Warehouse Level:
Type ‘Map rware1′.
Unlock Logistics Complex Level:
Type ‘Map rbase1′.
Unlock Thaelite Mines Level:
Type ‘Map rlava1′.
Unlock Waste Disposal Level:
Type ‘Map rsewer2′.
Unlock Waste Processing Level:
Type ‘Map rsewer1′.
Unlock Widow’s Lair Level:
Type ‘Map rboss’.
Unlock Waterfront Storage Level:
Type ‘Map rware2′.
