A rogue of darkness
Sith is a loner. He tends to keep to himself and fight on his own.
Sith carries a XM8 Assault rifle, and a M-21 sniper rifle, along with a pack that he usually has water, some food, and extra magazines for his rifle.
Here's a picture of the XM8.
Here's a picture of the m-21 sniper rifle:
Nothing is known about the young rogue.