N7: Archeological Dig Site

A scan on the planet Joab (Enoch System, Rosetta Nebula) reveals an archeological dig site invaded by Blue Suns mercenaries. The site bears a Prothean signature.

Walkthrough
This mission is mainly a battle against the mercenaries and a particular Lieutenant Locke inside the dig site. There are some crates of Element zero and a few lockers with Credits. The last door opens up to a room with a Prothean video terminal, very similar in function to the beacon on Eden Prime. When Commander Shepard activates the terminal, a short vision can be seen, partly identical with the first one concerning the Reapers but instead of Sovereign, a Collector can be seen in the end.
 * A PDA found on a crate is a letter from a Commander Santiago to Locke, giving him the order to meet Captain Vorhess aboard the MSV Strontium Mule in the Arinlarkan System of the Omega Nebula, triggering the mission N7: MSV Strontium Mule.