The Menagerie
From Halopedia, the Halo wiki
The Menagerie is a track from the Halo 3: ODST Original Soundtrack. It contains the smaller tracks Ground War, Oscar Mike, Unleashed, and On the Prowl.
A menagerie is a place in which a variety of usually exotic animals are kept.
The track takes place during the second flashback, Uplift Reserve, when you play as Dutch.
The song is also heard in the Halo Reach level New Alexandria during the portion of the level involving Gunnery Sergeant Edward Buck, making it one of the few songs to be featured in multiple games.
