CC#9 Operation Deepness Week 1 Day 1 Risk 18 | High-End AFK | 4 Operators【Arknights】
Channel: Yeemz
Date: 2022-12-08

Surtr is only deployed once. Level 60 operators on average are enough for the clear. 
All operators are at skill M3 here, no pot requirements on the clear.
Honeyberry at e1 is enough. But if your DPS (Thorns, Ifrit) is maxed out you will require a Wandering Medic with mastery levels as Pocket Sea Crawler reflects more damage based on their lost percentage of HP. 
In other words, the lower the level of your operators, the strategy would work even better. Otherwise, add in another Medic or Healing Defender to help Thorns survive the wave at 27/34.

Credits: https://www.bilibili.com/video/BV15Y411F7qC/?p=3&share_source=copy_web&vd_source=60300d674668b866c1388148b53f3047