Corridor Digital's video "Sentry Sabotage" explores very well known themes of treachery within Team Fortress 2 but it does so with unbelievable execution. I knew how this would end before I finished it the first time and I've already watched it a dozen times more.
I realise that headline's a bold claim, because we're not sure what Freddy Wong is up to. It looks like there will be a making-of video for this one coming soon. Meantime, go give Corridor Digital a Like on Facebook.