“Localized on the other side of the Coast, the Combine used to run one among other abandoned sections of the block cells as an area to detain citizens who were determined to be a threat to the Combine action. Later on, these cell blocks were left behind, including countless prisoners and citizens who tried to escape by their own through vents, old offices, maintenance facilities and sewers.
After a successful escape from the cell blocks in sector A5, you’ll find yourself still wandering in the sewers on another side at Nova Prospekt looking for an exit. Continuing your journey as a leftover prisoner attempting to stay alive at all cost. Keep low and dark. The Combine is still in alert of your escape.”
Be sure to check out Quiet Rehabilitation too.