That's the only thing I can think of so far, some anons on 4pol are still discussing it. One posted the strava heatmap.

A guy walked around it on youtube, the place is a ghost town and the buildings are empty.

Of the various possibilities one suggested the mercury for the scope was being stolen to build a bioweapon, posisbly a deep state base, or one anon suggested it being used to try and trigger people like us to see who reacts/not.