After finishing the Subway Town job, talk to Captain Marshall again to start this one. After talking to him, head up the elevator and talk to Saul. Then head upstairs and talk to Redstone to start the Foreman Jones job. When you finish that Redstone will start you on the Gearhead Vault job. Continue to work for Redstone and after The Price of Power job, head back to the resistance base to talk to Captain Marshall to finish the job, then Lassard to start the Ark Equipment job.
Collector Card: Authority Mutant - After talking to Captain Marshall, head in the room to the left, its on a tray.