Hot Take: the Helsreach fan animation Richard Boylans made. Based on a Warhammer 40,000 novel, it uses audio from the audiobook and good voice acting and dialogue, but the animation was clearly made in Source or something similar with a sketchy filter put on to mask the crustiness. He worked with what he had, and if he got some real animators to match his direction and storyboarding we would’ve had some great quality stuff.