Rise of the Machines

The year 2250. A handful of survivors in the Resistance unsuccessfully fight for many years to regain control of the planet conquered by the Machines. But now the human race has a very good chance of victory. The rebels come into possession of old archives and plans of the corporation that designed the mechanical monsters a long time ago. You find out there's a tunnel leading from one of your old bunkers into the enemy's lair. You're an assault team assigned to reactivate your bomb shelter and get to the Main Reactor of the Machines. You have no more than 60 minutes to destroy its power core and radically change the course of the war.