Marathon's limited time Ordnance Heist is a multi-run and map event that nets you a cool gun you can't keep

Marathon's Vault Breaker, an experimental PvE mode that allowed even solo folks to take on the endgame map Cryo Archive, is wrapping up today, but Bungie does at least have a new event for you to have a go at in kind. It's called Ordnance Heist, and while it doesn't offer any major new features or r…