Much of this has been relocated from another thread but, given current circumstances, I believe it will aid the QA Team better that way. In past releases (namely Heresy) it's no secret that, when levels in the game are posted, many have holes in them; some enabling players to slip through into as-yet-unreleased parts of a map, whilst most are just minor gaps that are hidden behind textures. Regarding the Call to Arms event, some players have reported that they destroy all the drones around Protected units... I dispute this (but it's not their fault). After playing Salt Mines a few times today I've noticed that, frequently, Protected units will hug crates in the location, where I have encountered this issue myself. What I think is happening is, sometimes one of these drones phases through into the crate, gets stuck, and then "detaches" from its SOI whilst still being tethered. Consequently, this causes the unit to become invulnerable. If the team is able to enable collision detection on the drones, I believe that will stop most of them getting stuck inside terrain objects. However, it would further be useful to inspect crates past the bottom of the elevator shaft of Salt Mines, to determine if any have holes that can be patched.