Easy way to get 100 kills:
At the beginning, get about 4 french soldiers, maybe a little more. Then get a engineer and build 2-3 trenches. Place all your units in the trenches.
Next get a gunner and a jeep. After you got all that, just keep getting gunners.
BTW, having your units in the trenches will also help you get the <11 casualties badge. :) I got all the badges for this game, 2nd try.
Hmm, a math game..
Seems like this kind of game would be for an older audience than the one on kongregate.
I could see my grandma playing this for hours.
I'd suggest adding some achievements.
Decent game, I'll give it a 4/5.
Made it to wave 147.
I think the game is good at the beginning, but there should be more upgrades for the towers. Possibly some towers that slow creeps. The creeps just get too strong and you have no chance any more, and the game gets dull pretty fast.
Overall I give the game a 3/5. Hope to see Warzone 2 out in the future.