So I found this rarity while looking for locations for a Mexico siren map. At first I almost skipped this thinking it was some sort of rooftop thing but then I saw a chopper and immediately took note, At first I did not know what it was but after asking around on an private Discord server, it turns out this is a champion. If its active or not is not known at this time.
Street View:
https://www.google.com/maps/@32.5392372 ... 384!8i8192
Screenshot: