Star Wars Knights of the Old Republic II: The Sith Lords/Feats

Equipment
These feats either allow equipment which would otherwise be unavailable, or only apply bonuses when particular equipment is used.

Armor Proficiency
Armor is worn on the head and body. Wookiees and droids cannot wear armor, so these feats are unavailable to them.

Weapon Proficiency
These feats give a character basic training in the use each weapon type. Otherwise, a character cannot equip them.

Droids cannot use melee weapons, while Expert Droids can only use blaster pistols.

Weapon Focus
Lightsabers are not melee weapons.

Weapon Specialization
Lightsabers are not melee weapons. Although the description for Weapon Specialization: Lightsaber only lists Jedi Guardian under its prerequisites, any main player character who becomes a Jedi Weapon Master or Sith Marauder can also select this feat.

Critical hit doubles bonus damage.