There is another Spartan Core inside one of the caves here too, its in the much smaller cave by the hill leading down.
The audio log can be found in a building on the road towards the Gun Battery itself.
After dealing with the Banished and before we continue with the story, there are a few more collectibles for us to get including a Banished Audio Log (Loyalties).
There will be quite a lot of Banished here, including two Hunters.
Now make your way to the eastern Gun Battery.
Anyway next to this part of the ship you can find the Those Left Behind – Spartan Audio Log
Head to where you found the last Spartan Core, it is on the ship’s engine section.
Still on the hunt for collectibles there is another Spartan Audio Log (The Mission), this too is also on the ship.
The core will be residing on a large part of the ship.
Whilst we are the the Pelican Down still, there is a Spartan Core we can collect.
Head to the Palican Down, to the large damaged ship, here we can find our next collectible (Spartan Audio Log – Debrief).
Once inside activate the Expose Core mechanism and this should eliminate the west AA Gun
From the locker head to the gravilift by the platform and ride it into our first AA Gun.
There will be a Mjolnir Locker (Warmaster’s Prize Battle Rifle) near here for us to collect
Continue up the path to another group of Banished.
The Banished Audio Log (Reformation) resides in the building here
We should now be at the Gun Battery, our next collectible can also be found here too.
Before riding the elevator up, just to the left will be a Spartan Core we can collect.
However, there will also be an elevator here too
At the start of the mission continue along the path towards a large building, this place will be swarmed with Banished.