I can just imagine an enemy Spy repeatedly trying to sap their sentry only for his plans to be accidentally foiled by their antics without them even noticing (e.g. the pictured scenario; while they're fighting over the Wrangler, it's flailing all over the place, he gets sent flying by a stray rocket while sneaking in), much to his increasing frustration. Kind of a Wile E. Coyote vs Road Runner scenario. ...On that note, TF2 slapstick cartoon series in the vein of Looney Tunes or Spy vs Spy would be completely amazing and I would watch the hell out of it. 'Course, GMod (and now SFM) videos have always partially filled that gap.
May I actually ask your permission to vector this sir? Its a complex piece, but I think the amount of work involved would do my vectoring skills good. I do all my original digital work as vectors, and sometimes tracing someone else's style does one good. Credit would be awarded, and I would certainly understand if you say no.
Brilliant idea and execution, Joey! Everything looks amazing. I especially like the turret effects and the rocket contrails. I also like all the little details in this too, such as how you redesign the engineer helmet to accommodate Sweetie Belle's horn.