Love the idea, and i think 3 templates you make and can deploy during battle is a good idea (simple button to change them over) but i don't think it matters if they look different (too you they should so you know what to do with them, color is a good idea) but enemy should look the same or close to the same, i mean lets take a piranha, you could put the other bombs, some torps, or some missiles, well bombs you just dodge or let your PD take care of it, torps same thing, missiles is where you let your PD take care of it or outrun them, so don't see any reason why they should look different (mostly) you handle all of them the same, dodge or PD