To use these cheats, you have to first create a file in the Desperate Measures directory (where you installed) called: ixtlriimceourl (there is no file extension for this file) by making a copy of windows.fit and renaming it. This is the secret file needed to enable the cheats.

Gameplay Cheats-These cheats must be typed in during the mission.

CTRL-LCharts the map
CTRL-ALT-W-Win mission
deadeye-Gunnery skills increase dramatically
framegraph-Show the framerate
lordbunny-Press b and left-click to Nuke
lorrie-Repair Damaged Parts/Damaged Weapons
mineeyeshaveseentheglory-Reveal the Map
osmium-Toggle god mode on/off
Logistics Cheats-These cheats must be typed in during the Logistics Phase.
poundofflesh-Adds 1,000,000 Resource Points.
rockandrollpeople-Removes Drop Weight Limit on current mission.