Raise your hand if you've played any of the oldschool star wars flight sims!
Ok, the way it worked back in the day was, yes missiles were a fire and forget kinda thing, but the only ones you would shoot at fighters (the ones that were effective) would be concussion missiles, and only the A-Wing, the TIE Advanced, the Assault Gunboat, and the TIE Bomber carried them.
TIE Fighters and TIE Interceptors don't carry any warheads. TIE Bombers only rarely carry concussion missiles because the Bombers were to slow to be effective agains't enemy fighters. X-Wings, Y-Wings, and B-Wings carry only proton torpedoes.
Proton torpedoes are fairly ineffective agains't enemy fighters because the torpedoes aren't that fast, and they have a very large turning radius. They are very effective agains't slow moving or stationary targets. So while you can lock on to enemy fighters with your proton torpedoes, you won't have a very good chance of hitting them.
I'd say that BF2's system of lock-on/fire-and-forget missiles would work well for our mod because most of the dogfighting will be done with lasers anyway. If someone tries to throw some proton torpedoes at you from their X-Wing and then hope that you died, that's their mistake because it's easy to dodge the torps. Then you can come and blast his butt from behind in your shiny new TIE Fighter.