A first person account of a mission is something that could be really funny, particularly if you show two things: commentary from the agent him or herself, and a steady degeneration in the agent's demeanor from the beginning of the mission to the end. You know, starting with ordinary things like:

-- Unnecessary repetition in fic title. Contacted Department of Redundancy Department.
-- Your/you're confusion. Administered half a tablet of Bleeprin to self.

Then moving on to items such as:

-- Canonical character now has breasts twice as large as normal. Forced to restrain partner.
-- Canonical character said something both OOC and offensive to modern sensibilities. Injured arm in effort to restrain partner again. Must remember to visit Medical after mission.
-- Viewed something really horrible, ate more Bleeprin, forgot what something in question was. Partner refuses to tell me and instead only muttered a string of curse words.

And so on.