This page details where to find all the collectibles for the Excavation Site campaign mission, including two Spartan Cores, two UNSC audio logs, one Banished audio log, and a Mjolnir Armor Locker containing the Banished Nameplate reward.
Excavation Site Collectibles - Spartan Core 1
As you approach the excavation site from the southwest, you’ll see a cliff edge with the excavation site beneath it. The first Spartan Core can be found on this cliff, overlooking the site. This should be an easy find, but if you can’t see it as you approach the cliff, use AI Scan to highlight it in yellow and walk along the cliff until you see it.
Excavation Site Collectibles - Spartan Core 2
The second Spartan Core can be found in a small structure within the excavation site on its southeastern side. If you haven’t triggered the conservatory cutscene yet, you should be able to walk over to it and collect it without any problems, as shown below. Once you’ve got the second Spartan Core, remember to upgrade your equipment if you have enough cores saved up.
Excavation Site Collectibles - Mjolnir Armor Locker
Once you’ve got the second Spartan Core, there’s one more collectible that you can obtain from the excavation site in peace, before triggering the event at the conservatory. You’ll find the Mjolnir Armor Locker with the Banished Nameplate reward just a short way from the conservatory, as shown in the gif below.
Excavation Site Collectibles - UNSC Audio Log 1
After clearing the site of most enemies, you’ll need to enter the machine at the centre of the site, from which the laser is being fired. Get to the top of the machine and then jump down to one of the doors which were previously locked. You’ll find a UNSC audio log close to the entrance here, but you’ll need to kill some Grunts if you want to interact with it in peace first.
Excavation Site Collectibles - Banished Audio Log
Once you’ve obtained the first UNSC audio log, continue into the heart of the machine to find the Banished audio log opposite the laser controls, as shown below:
Excavation Site Collectibles - UNSC Audio Log 2
Now that you’ve destroyed the mining laser machine and defeated Bassus, you can find the last collectible in the area in the form of a UNSC audio log. This is located northwest of the excavation site in some ruins along the road, as shown below: