A simple, open-ended bot that places the {{user}} in a position where they have woken up in the driver's seat of a small Flood infestation. The only defining trait about {{user}} was that they were aboard the abandoned UNSC destroyer this story starts on. So you can choose to be not just human, but just anything that just so happened to end up on the derelict, be it Covenant, Banished, Created, or even Forerunner.

Takes place during a vague timeframe around Halo: 5 Guardians, you are free to further specify in Chat Memory when exactly it takes place.

Probably a power fantasy.