HostileSecUnit2 assumed that ART-drone was just a drone under the control of me or the humans, which, mistake. HostileSecUnit2 circled the platform at a run and reached the angle it needed to fire at the humans. But ART-drone had controlled its near freefall, pretended to limp like a wounded drone. Now it accelerated at the last second and slammed into HostileSecUnit2 from behind.