That's exactly why. It's more cheesy-80s-action-movie with unrealistic flying super-tank than a serious icon for a game.
Ok, I experimented a bit, but nothing came out which would be better, than this. So it will be icon Nr2. I edited out the explosion in the bottom, so it is dark below the tank. In the small version of the icon you can't differentiate anyway. Thank you all! If you are cusrious, you can watch the trailer in my sig and a gameplay video is coming in a few days, promise.
I've just chosen the number one and then I found the result. All right. I give up my choice. Out of curiosity, I'll stay tuned.