@ Donat,
i have made some little changes to CaptainCox idea.
@CaptainCox, this is not an intend to grab out your idea. i have only checked the status of the lamps and find out that there are some more possibilities to work with the lampcolors.
1. moving the periscope (FWD torpedo selected) - lamp red off - button off
2. moving on a ship (FWD torpedo selected) - lamp yellow on - button off
3. locking on a ship (FWD torpedo selected) - lamp green on - button on
4 locking on a ship (AFT torpedo selected- wrong torpedo side) - lamp green off - button on
so you get very easy an information- if you are able to hit the ship, and if you have locked with the right torpedo, (FWD or AFT)
i also will use the little led-light above the lamps.
Torpedo 1 is loading, and therefore you can not select him, no green LED on.
(this is only a little cosmetic change, because loading torpedos lights are flashing)
If CaptainCox give me his OK to share it, i will put the link here.
regards
jimimadrid