especially for a 1st serious game: troops, troop ai, troop commanding, a couple weapons, etc.
it's...mechanically shoddy and somewhat unfun, there's no real pace and everything is very easy since you have 3 lives, can regenerate your current one as long as you spend your time for it, and have virtually infinite ammo and squadmates.
But I really do want to emphasize this is impressive effort, and I'd wager I'd have a lot of fun watching the AI interact against each other (for example, the helicopter scene was very cool).
Good work!