There's only one collectible on this mission.
SCAF Artifact
This artifact can be found relatively close to the level. Follow your objective path until you cross between to large rocks. The path will continue forward and a large open path will appear to your left. Follow this to the left until you come to a cliff that you can't pass. Follow this cliff and as you walk along, you'll see a rock come into view on the right. Go between the cliff and the rock and you should be able to see the glimmer of the artifact ahead.
