Yes i believe it was posted somewhere in some patch notes not too long ago, hopefully someone with more knowledge than me will come along and tell you, or be able to find the patch notes. i just tried to find the patch notes but couldn’t find them, but i believe that they did announce the change. From memory i think they increased the drones chance of getting aggro by 17% or so, don’t take my word on it though thats just a guess. Lets hope someone with more knowledge comes along. 