Did some online rule checking.

I wasn't sure about the Reaver jetbikes. I looked around on the internet as to how to field them properly. I didn't realise that they can assualt 6" away. According to this "Bikes and jetbikes have the Relentless USR, which according to the BRB (pg. 76), allows one to fire Rapid Fire and Heavy weapons as if they were stationary, and are also allowed to assault after firing them. So yes, if Reavers move 12" they can fire twice (assuming that the enemy unit is within 12"), then assault." they can also move 12", shoot twice, and assault 6". This does give them the sexy hit and run style that I wanted.

yea, thats right! but you can only fire one weapon per model i believe... dont quote me on that!
so no rapid firing then pistol shooting! but it does make a very good mobile shooting unit! Imagine moving just into 12", opening fire then moving 6" backwards so the enemy cant charge you!