I always thought of making a submarine map. However, I never got to it. My original idea was that the subs would be carriers and interceptors could be used as torpedoes, anti-missle defense, and sheild; depending upon the mode you were using. I also had a radar system, a way to detect incoming torpedoes from you and how far they were. It was basically having about 5 different locations each consecutively greater than the one before about 4x4 in diameter constantly centering the submarine. They triggers went like this:
ACTIONS:
- Enemy brings at least '1' 'Torpedo' to 'Largest Location'
- Enemy brings exactly '0' 'Torpedo' to '2nd Largest Location'
CONDITIONS:
- Display for current Player 'Incoming Torpedo at 50 yards'
- Preserve Trigger.
ACTIONS:
- Enemy brings at least '1' 'Torpedo' to '
2nd Largest Location'
- Enemy brings exactly '0' 'Torpedo' to '
3rd Largest Location'
CONDITIONS:
- Display for current Player 'Incoming Torpedo at
40 yards'
- Preserve Trigger.
etc. etc.
Maybe you could use that. Also for sheilds, I had a grid system around the Submarine, and when you were in Sheild mode, and the interceptors came out of the carrier, they would circle around the Submarine constantly, and if a torpedo hit, it would blast it away.
Anti-Missle Defense with Interceptors were just them firing at the torpedoes till they exploded.

Some ideas for you.
