I absolutely LOVE the game mechanics, but it's really very easy. A few points:
-Bayonets make the game very easy. Just plop a marine down next to a manhole with a bayonet and it's completely shut down.
-Leveling is too fast, or the enemies are too weak. One of the two...
-Enemy movement needs to be sped up, or there needs to be an option for "fast movement."
-Enemy spawn points should spawn all their enemies at one time, instead of cycling through the map. If you have guys place on defensive mode, enemy turns take FOREVER.
-Money is too easy to come by. I had all the money I needed by level 15.
Very good game!! I would love an updated version :)
Nice game - I like the originality. I beat it on the third try. Is it possible to ensure that cities are not repeated as the levels progress? My constructive comment for the day. :)