Don't you welcome Disc World to 40K? ;)
“Light thinks it travels faster than anything but it is wrong. No matter how fast light travels, it finds the darkness has always got there first, and is waiting for it.”-Terry pratchett
It's called a jokaero, a chimpanzee like alien who has an affinity for technology. It's early GW lore and I for one didn't think they would bring it back. Someone at HQ must miss second edition... I mean Oook!
I still stand by that there had to be a lot of beer involved, no mater when it was designed
Of that there no doubt, by the barrels...