On Polis Massa, be the CIS and while being an Engineer droid, go outside, don't worry, you won't die of air loss. Then fusion cut on of their tanks and blast the clones that get 'ejected' with your shot gun. The fact that they are quickly suffocating eases your slaughter of them. You will get technician awards for the slice. And then run into their CP tank hangar place and mow their clones down with your shotgun, basically suiciding yourself, but hopefully getting enough kills for 'Regulator' or w/e the shotgun award is. Then respawn and do it again.