I really wish I could just put on an AI disguise, sap the defenders, and backstab the Guard Posts before getting burnt by the Fortress. Or just Dead Ringer my way out via Transport.
Just kidding. TF2 actually gave me worse "did that too much" moments than AIW; by a long shot! "Flame, Airblast, Axtinguisher!" is what I kept thinking whenever I ran into people on the street, back in the hayday of my playing TF2.