videos in AudioSet
A list of about a million ten-second YouTube clips, each labelled with the sounds in it, that Google published in 2017. Labs use it to train and test general audio and music models.
Including Halo 3 - Crow's Nest High Score - 191,373 Points Part 1, Halo 3 Speedrun - Crow's Nest on Legendary, Halo 3 Cutscenes - 04 - "Crow's Nest: Opening"