Talk:Codex/@comment-27655220-20170703013933/@comment-27655220-20170705000529

I got my Attack Drone Eximus scans from doing Pluto - Exterminate mission. I'm not sure if your survival had some different mechanic. The 1 in 10 ratio is only an estimate (not published fact) based on about 30 Fusion MOAs in Pluto-Exterminate. So don't know if the spawn rate in your Survival was affected by something else. I did notice that none spawned from Fusion MOA Eximus (the opposite of what you would think). Maybe your survival was filled with those and not regular Fusion MOAs?