Can we make any educated guess as to how long the various aliens have been plaguing us? I'm guessing the fallen were the most recent, the cabal next, the hive, then the vex oldest of all. The fallen have ships and raiding parties The cabal have forward bases, bunkers, and an occasional fortress The hive have ripped the moon down to its core The vex have transformed mercury, parts of Venus, and started on Mars. Amirightoramiright? So do you think in all your lore wisdom you could maybe just try to guess when they all showed up? Judging by the rust, the cabal couldn't have been on mars more than 5 years or so. And by the looks of the sloppily arranged banners and lack of skulls, the fallen showed up... What... 1-2 years ago? I'm guessing the hive have been at it for 1,000 years or +, since your ghost says 'first human to set foot on the moon in centuries'. What's your guess for the vex?