Redeemer Accomplishments Badge on Oroboros

i've problem to find on oroboros mission list the Redeemer Accomplishments Badge, anyone can help?
the mission is "Defeat all Warriors in warehouse
" from Laurie Pennington or Ashwin Lannister lev 25/30.

It looks like that one's at the end of the "The Redemption of Alexander 'the Great'" arc - just checked, and the arc itself seems to be available via Oroboros.

(P.S. This is more a "Player Question" than a "Player Guide".)

thank you.

p.s. your link is a guide for me!

Yes, the Defeat all Warriors in Warehouse" mision is the final part of it, which can be confusing if that's what you're searching for in Ouroboros.