you were one of the expendables who was sent down to dock #149, then after you exited the submarine, you and the other expendables was greeted by a dimly lit lobby with the staircase that leads down to the door labeled "040" and item lockers lined up, one of your teammates, Jason noticed a paper sitting on a desk with a code to the locked door, the desk was next to another staircase that leads up to another floor of the lobby with more desks and a blocked off door down said hallway next to the desk, then as the remaining team members exited, you all hear a familiar voice of the HQ through the intercom that crackled on.

"We need to set up a staging point for the Expendable protocol.. normally, we'd send in teams for these tasks, but we're pretty short-staffed right now, and your previous records make us believe that you would be best for the job, you'll have to navigate your way through a section that is currently under construction. It's a.. relatively low-risk area, but, you've still been provided with a high-grade flashlight and flashbeacon to ensure the best chance of success. Way better than that other crap you'd find laying around we're yet to rig up speakers, CCTV or broadcast amplifiers in this area, so.. you're gonna be left in the dark.. follow the NAVI-path, it'll guide you straight to the dock. Good luck, and stay safe.

At that, the intercom shuts off for the time being as the lobby was plunged into silence except for the occasional footsteps of your fellow expendable teammates.