Boss Hunt...How to beat it...
While I have yet to beat it I know what to do. To bad I can't communicate it to my teammates ingame.
1. Everyone Goes Scientists/Variants preferably the Astronaut or Archaeologist. They have the survivability and mobility. Tanky characters might also work.
2. When the boss appears...DO NOT FIGHT IT. It is invulnerable.
3. When it is time to capture the Anchor Gravestones. Two players have to stay inside while the other two fight the Torchwood Champion/Guardian. Otherwise the Anchor is broken and you have to do it again.
4. After the Torchwood is dead the players are given the task of finding a Candy Pumpkin Bucket. It spawns in a random location. The player who picks it up CANNOT USE ABILITIES and if they die the whole team is wiped.
5. When picked up the players are tasked with killing Champions that drop loot and CANDY that only the Pumpkin Carrier can eat. If anyone else does they die. You have to kill 3 champions and get the candy before the time is up. If it runs out... TEAM WIPE.
6. If successful the boss becomes vulnerable and everyone's damage is increased for a short time.
Rinse and Repeat.