Jonbee: Go to the Main Menu, click Options, and set Music to Off. You cannot disable the sound effects though: if you're going to play Starfighter, I recommend you keep the sound effects on, because you will not know what's coming at you; say, later in the game, you will not be able to hear the sound of EMP torpedoes firing, nor will you hear the sound of mines being laid, etc. You will be relying heavily on the radar and your eyes; and you can't see much anyways... Rotundor: I have a slow computer, yet I have done just fine by going into Options and setting every quality option to low and disabling explosion fragments. It's kind of nice to have a slower computer so you can actually do stuff in slow-mo. It actually can help when you're learning to do stuff, because that extra couple of frames that you notice something on a slow computer will give you time to react.
Razin: "Due to hackers ruining everything, SF:DG is now single player only and will remain here for badge purposes. I am no longer supporting this game..." Straight from the updates section. Thus, due to hackers, SF:DG will stay single player. When Starfighter Infinity comes out, you'll have your fill of MP.
Letel: Send Kong a report about the missing badge showing you did 5 assassinations. Kings: Even worse is a swarm of Fighters all armed with EMP torpedoes, thunderbolt items, and plasma cannons.
Easy way to rack kills up: Dump the pistol and find the M1187 OR lever-action shotty as fast as you can. You can either keep the Thompson or swap it with a Explosive Dart Launcher. What you do is: Run up to an enemy almost point-blank, and click. It is a guaranteed insta-kill if you do it right.
Missionary not working? Try refreshing and it should register, Kong tends not to save stuff sometimes. Dom, this game is not being supported by Ben anymore, and multiplayer has been disabled. Wait until Starfighter Infinity comes out. Then you will always be in a multiplayer sector... at least, that's the plan. If you were here back in '09, you could have dome multiplayer... Stupid hackers >.>
If you hear something different for music when you enter a sector when you're not on a mission, SEARCH THE SECTOR. There's a planet somewhere in there.
To kill Gregor: On the first turn, use a move like Disrupt to prevent him from casting that roach thing and set everyone to Relentless. Have them keep attacking Gregor in full force to keep his HP down when he casts his HP thing. When his HP regeneration readout says 2, cast Subversion on him, or something that swaps damage with HP, and set everyone to Phalanx. Wait till Subversion wears off, adding a Break or Disrupt in before attacking in full force again. It might be a bit.
Score Tips: Chain as many jumps as possible. It will gain you many more points than just hitting orange power cubes while rolling. If there's no jumps, keep sweeping from side to side, rolling as you do.