I've had a look at STAR TREK LEGACY, and it's all bad news, I'm afraid.
From what I can tell, the game engine is based on the old FASA pen-and-paper Starship Combat rules. It doesn't appear to use any rules elements from SFB or any version of SFC at all.
I don't know if this applies to STAR TREK TACTICAL ASSAULT, or not; I have been
told that TA (for XBOX and PSP) is a subset of LEGACY, bt I have not seen TA so am unsure. So, no joy there, either.
The graphics are nifty, and I'm sure that the game is great, but as a die-hard SFB-er and SFC player, I'm very disappointed.