The Young Philadelphian | Walkthrough Homefront: The Revolution Guide

After the beginning of the second mission go to the indicator marked on the map. The place will be marked by a special house icon. After reaching your destination, turn the flashlight on, and get to the basement, seen on the above screenshot. To get to the next part, you need to destroy the blocking boxes using the melee attack, and crouch in order to get through the blocked passageway.

Following this way will lead you to the abandoned station. On the left (see the screenshot) you will find a generator, which will light the way. Your task will be to get through numerous obstacles. Use the specially marked places to navigate. At the end of the way, go through the last blockade to end the second mission.