This game is brilliant for a flight action shoot em up. Reminds me of those old arcade 'flight sims'.

The variety of aircraft and weapons is interesting, so is progressing from modern to near-future ordnance.

One suggestion would be to please make larger maps, longer ranges, and having the option to start from land or sea bases. The starting carrier is a little wimpy and its an immersion breaker as the enemy doesn't attack it. 

An 'airbase defence' game mode with many AI friendly and enemy fighters duking it out would be great, to give the feel of a larger air war.