Briefing:
All you really need to know:
Klepto:
Garrett Vs. Loot; about half of the mission is locked out; minimal AI.
Vengeance:
Garrett Vs. AI; Basement level 1 unlocked, no loot, AI
...
After 4 years of instruction under the ever watchful Keeper training instructors, you are finally ready to graduate from the Field Agent Academy.
All that awaits you is the final exams, however ...