I take it all back. I hate this game. So frustrating.
OK, I don't hate it, but its pretty frustrating. On the second map I got into the 80's, but then died. the damn planes. They just don't stop.
The game would be better if it got harder a little more gradually. This is really tough. Also, we need a way to take a screenshot, so you can remember the strategy you had previously and tweak it.