When Chuck can choose any CIA agent for his undercover mission, you better believe he goes with Walker.
Added:
Chuck got promoted to a full time agent after completing his final exam on the last episode.
Added:
It looks like someone catches Chuck during his first real spy mission after being promoted to an agent.
Added:
Chuck Bartowski, or should we say, Charles Carmichael is now a full time agent on Chuck.
Added:

Chuck Season 3 Episode 12 Quotes

Morgan: Is that what they teach you in the marines, roll over and die?
Casey: This isn't exactly combat, Morgan.
Morgan: That's where you're wrong, Casey, because love... love is a battlefield.

Receptionist: So where will we me sending you, Mr. Bartowski? Bali, Bora Bora?
Chuck: Burbank. Bob Hope airport to be exact.
Receptionist: I see, and will you be requiring a companion ticket?
Chuck: No thanks, she's still there.

Chuck Season 3 Episode 12 Music

  Song Artist
At the checkout counter At The Checkout Counter Billy Martin iTunes
Down river Down River The Temper Trap iTunes