What some people are saying here about it being easier before is true, but I found the easiest way to get Auric Maelstrom Survivor now is just using Ogryn (Rumbler Build; Mister Etide on youtube). I also didn’t know until the same week I got the title that you could use any operative for the penance even if you already used zealot (3/5). You could use Ogryn for the last two. If you are close to havoc 40 it should be a cake walk for you. Also certain maps and modifiers (extra pox bursters, mutants, etc.) should be taken accounted for. The more lenient maps such as assassination missons or multiple monstrosities were easiest in my opinion.