[I decided to add this category to my roster just for kicks, and to see if I could tie any words I may come across into anything Metal Gear. Because, of course!]
Vetting is the process of performing a background check on someone before offering them employment, conferring an award, etc. A prospective person or project may be vetted before making a hiring decision. In addition, in intelligence gathering, assets are vetted to determine their usefulness.
Sentence usage: Solid Snake was vetted before being assigned by Colonel Campbell the task to take down Metal Gear.