I'm newcomer and...I just leave it here.
It's assasin droid from Star Wars: Jedi Knights: Jedi Academy
http://vignette1.wikia.nocookie.net/jediacademy/images/6/6f/NPC_assassin_droid.png/revision/latest?cb=20140223160846
And please, post your Star Wars ideas in this topic
Assasin.lxf