MAP 10: UNDER GROUND WALKTHROUGH if you need more help, visit the SM forum HERE or Download a PDF VERSION HERE
Map 10: UNDER GROUND takes you deeper into the mountain via a long tram ride. Press the switchboard on the left to open the tram door.
The long tram ride ends Under Ground deep in combine territory. Look for this room to fill up on ammo and a suit charger.
Use the button to open the door. Enter the hallway carefully as there are some hard to see combine. The EASTER EGG location is through this vent shaft. After you get the data, head into the red tunnel.
Pass through the mirror room, check yourself out, and then the first jail cell room. Look for this button to open the cell door.
Crossing the strider machine is all about timing. Use the columns to jump across. Use a grenade or some ammo to blow a hole in the wall to escape.
Before you leave the Under Ground, there is one more combine camp. These guys aren't used to seeing physicists packing heat. Teach them some science and then get ready to be Depth Charged.
MAP 10: UNDER GROUND WALKTHROUGH if you need more help, visit the SM forum HERE or Download a PDF version HERE
