Ive made a 3do of a small ATS fighter craft, which soon I will give a keyframe so that it continuously flies in a figure of 8.
How do I get it to fire at me with conc bullets as soon as it sees me/enter a sector.

Heres a guess:
3do:flyer
cog:some turret
keyfiles: figure of 8

OH yeh, how do I make a sound near the object?

if(getThingFlags(source) & 0x8){
  do her}
elseif(getThingFlags(source) & 0x4){
  do other babe}
else{
  do a dude}