My problem is that once you get behind, you're done. There doesn't seem to be any comeback value that I can see, or is it just me? also the 1 action on the first turn is killing me as I place infantry, the computer places infantry and something else, kills my infantry.... rinse... repeat...
The good news is that this game is skill intensive enough that if you are as good or better than your opponent, comebacks can definitely happen. If you fall behind because they have a better draw, you need to try to stay alive until inevitably the cards you are drawing are better than theirs. If you play the game often enough you will find that you will come from behind sometimes.
At the moment you are a novice playing against an above average player so it wouldn't be a surprise if you fell behind and even less of a shock if once you were behind you ended up losing. The computer is tough enough that if it has a better draw than me and I fall behind I sometimes lose. The great thing about playing against a tough opponent now is that when you get the actual card game and start playing against your friends you will have the satisfaction of much butt-kicking. Good luck!
-Darwin