The following cheat works only with: Clone trooper, Clone marine, Stormtrooper, Storm marine, Republic soldier, Republic marine, Super battle droid, Droid marine

Most of the other awards are either not very good or hard to get.
I must admit sometimes this medal is hard to get, almost impossible when the game is set to Hard.

The best award in the game is "FRENZY" to get it kill 12 people in 1 life you then should see the words:
FRNZY --> Award elite rifle / Award wrist blaster

Come up quickly click Black twice you now have a gun which can kill any enemy in at least 2 shots.
To make the gun even better continue playing until the words:-

WAR HERO --> award: increased damage (or something like that)

You now have the games best gun that can kill a hero in five shots and a normal player in one shot!