Talk:Tactical Alert/@comment-201.34.99.97-20171001014257/@comment-27277026-20171003000249

They are indeed uncommon, but at least they're more common than big events. The most recent one was another razorback armada incursion about 4 or so weeks ago. I think there's a tab under the invasion section of navigation that serves as a rough gauge for which event may happen next/which boss.