At the profile management screen, create a profile and name it 'Jub Jub'. When you play, all your soldiers will be about the size of Ewoks with one or two exceptions.
Kill a Jedi Hero
To kill a Jedi hero instantly just play a level with starfighters and land the starfighter on top of them.
Blaster Rifle Head Shots
The accuracy of the infantry's blaster rifle decreases dramatically the longer you shoot. However, the first 3-4 shots will almost always be dead on target, making it a deadly snipe tool even over moderately long distances if you keep the bursts short. A great benefit that comes from sniping with the blaster rifle is the rapid fire which can give you up to three head shot points per kill if you're aim is on. For these reasons, selecting the sharpshooter is really only necessary for sniping over really long distances. On most battlefields though, the scope on the blaster rifle should suffice, also greatly improving your chances at close encounters.