"1st campaign cheat:
When the single player game screen comes up, type DRDEATH. Click on the bone that appears to be able to play any mission

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Press 'Enter' to bring up the message box, type in one of the following codes, then press 'Enter' again to activate.

+ATM        - Gives you 1000 metal and energy.
+CDSTART    - Starts CD Music.
+CONTOUR#   - Displays a 3D contour, # = 1-15.
+CONTROL#   - Lets you to control a different skirmish AI.
+DITHER     - Dithering instead of line of sight.
+DOUBLESHOT - All weapons do twice the damage.
+HALFSHOT   - All weapons do half the damage.
+ILOSE      - Causes you to lose.
+IWIN       - Causes you to win.
+NOENERGY   - Drops your energy to 0.
+NOMETAL    - Drops your metal to 0.
+NOSHAKE    - Stops explosion screen shakes.
+NOWISEE    - Full map and disables line of sight.
+RADAR      - 100% radar coverage.
+SING       - This command makes units ""sing"" when given orders.
+SWITCHALT  - Allows you to switch between squads with alt+# keys.
+VIEW#      - Lets you see how much metal and energy a player has. "
