F-50 Sith battle droid

The F-50 sith Battle droid was a droid that looked like a mix-up of a B-2 Battle Droid wit Mandalorian helmet, they were armed whit Kamino toxic darts and and blaster pistols, they dressed like Naboo Royal Security palace guards and where programmed to escolt Dooku and Sidious during Clone Wars. They where destroyed by Palpatine himself uring Galactic Empire era.