MAP10: New Front Base (Strife)

After the Programmer is destroyed, MAP07: Castle is replaced by MAP10: New Front Base. It uses the music track "March".

Walkthrough
Basically, it is a replica of the castle but is controlled by The Front and has a few structural differences. Accesses to the training facility and the Programmer's keep are now blocked and the entrance to the audience chamber is replaced by a headquarters where Macil resides. Just across the HQ is the hospital where you can find the medic Gerard and the trainer Feris, as well as a person named Justin who sells ammo and teleport beacons. Near the main gate that leads to the town, there is a teleporter that leads directly into the HQ. Soon, you can also access the new Front base from the borderlands where a bidirectional teleporter can be activated between the central yard of the level and the HQ.

Later in the game, Macil becomes a boss you need to kill. If you attack him at any point after the castle has been conquered, the rebel troopers will help you, although Macil is invincible to their attacks.