Take control of a bounty hunter, and hold in to throw a thermal detonator. In order to get this achievement you must be surrounded by 10 enemies, once you are throw a detonator at them and hopefully when it explodes it will kill 10 of them. This is easily done in Episode 1: Chapter 6, in the room with the multiple platforms, and the platforms with the energy beams in the middle, the two droid commanders call about 10 droids a piece. Run around until all 20 are chasing you and are in a group. Then stop and throw a detonator at them and you should receive this achievement. You can also do this in Chapter 3 of Episode 4. Turn on the Disarm Troopers extra (see red block location to where this is located) to make this a lot easier and also the Super Thermal Detonator to get that extra range (see red block location to where this is located). When you get to the area where the Falcon is, destroy the first wave of the Stormtroopers. When the spy sends in the next wave, move over to a corner so that all of the Stormtroopers follow you. There should be about 10 of them surrounding you at this time, throw a detonator and it should kill all of them.