Easy Win...
	Hidden Camp (Level 20)...
	Level Select...
	Secret Level (Level 3)...

If you're at a level that you just can't beat, press CTRL and the PLUS (+) key. Instant win!

To play the secret level "Limbs, Heads and Smoking Craters" get all the units you can and leave level 20 ("Murder of Crows") through the northeast corner.

When selecting NEW GAME hold down the Left Shift button until the levels come up. You will now be able to choose any level.

To play the secret level ("A Long Awaited Drinking Party"), start a 1-Player game and advance to the third level, "Down a Broken Path". Prior to completing the third level, kill the three frogs on the tiny oasis. (They are located in the Northwest corner of the map.)