Talantis

Dive into the depths of the ocean with a community-designed Talon base as a partially-complete non-canon Control map! Featuring extreme verticality, yawning death pits, and of course, giant fish, this map will be available in the Arcade for a limited time.

Source:

• Overwatch 2 Season Four brings a new hero, new skins, and new out-of-this world adventures! - news.blizzard.com