Prestige Classes:
Assassin
New Class Skills
The assassin's new class skills (and the key ability for each skill) are Demolitions (Int) and Freefall (Dex).
Class Features
Weapon and Armor Proficiency: When an assassin takes the Technical Proficiency feat, he automatically becomes proficient with high-tech light armor, all high-tech simple weapons, and all light and one-handed martial firearms.