I personally refused to abuse VoC, Smite, Bubble, Chorus & they were cool with it. So, of course with a pre-made of friends we did it from 16 all the way to 40 with me being Ogryn the entire time! 
. Got True Survivor & all of that Jazz. We failed a few times during the course of our journey together. Took almost 2 days to complete, but we all binged through it one rank after the other. I can say that proudly we only skipped the first 16 levels. Even after that, I’m still completing 40’s here & there to keep my mind sharp. Just so I don’t go soft from playing regular games lol. The Hardest map for us was you guessed it… Gloriana… it was at about rank 37-38ish & another at 40 when we did that again as well. A true nightmare with all the tough modifiers on. A buddy of mine got extremely lucky to play literally one 40 game & got True Survivor in the same run. He was like, “I’m done now” lol. Cannot blame him really, I suppose. Lucky S.O.B.