Dangerous Depths Quest/Spoiler

Method
This quest will give you access to three new Warzones. Unlike the Bigfoot's Burden Quest quest, you do not have to do them in order and can start all tasks from the beginning. Players with the maximum rank in the Bigfoot's Burden Quest receive special treatment and need one point less to access to access the Warzones, so it's recommended to do that quest first.

Warzone I
Find the NPC Gnomus north of the Deep Hub's entrance and offer him your help, he has three different tasks you can take.

Warzone II
Find the NPC Klom Stonecutter south-east of the Deep Hub's entrance and offer him your help, he has two different tasks you can take.

Warzone III
Find the NPC Lardoc Bashsmite north-east of the Deep Hub's entrance and talk to him about his work, he has two different tasks you can take.