First, you gotta talk toDekka.
During the conversation, you’ll get the chance to ask some optional questions.
You will find a total of 4 such devices in the area.
Before you leave the Grove, return to Dekka.
Kotallo can be found observing the area at a vantage point.
you could either ask him a few more questions first or set off on the journey together straight away.
While traveling with Kotallo, you will encounterRegalla’sRebelstwice.
Once you near it, you will need to talk with Kotallo again.
Once you arrive in the Bulwark, follow the set path.
Ask the guards to let the characters pass and listen to the conversation with the clan members.
you could opt to glide all the way to the bottom of the settlement by using the shieldwing.
Stand at the location indicated by the game and turn onfocus mode.
you gotta locate theAncient Debrispictured in the screenshot.
Head down below and once more meet up with Kotallo.
You don’t have to use the elevator again as the man has gone down in the meantime.
You’ll learn that the mammoth isweak to frost.
Prepare a ranged weapon (or several of them) which can deal frost damage.
Carefully reading through all of the mammoth’s tabs in the machine catalogue can also make the battle easier.
You’ll learn about its weak points and elements allowing it to attack you at range.
Prioritise attacking the Tremortusk whenever you’re free to, as it’s by far the biggest threat.
Search the mammoth’s remains.

You’ll be rewarded with plenty of loot and the cannon, as shown in a cutscene.
This will lead to a cut-scene and part of the wall will be demolished.
You will also proceed to the next main quest.
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