Central Processing: Primary Server Bank

Central Processing: Primary Server Bank is the twenty-third level of Doom 3. The player fights the third boss, Sabaoth, the demon transformation of Sergeant Kelly.

Summary
The Player enters the Primary Server Bank and faces a host of monsters almost immediately while the demonified Sergeant Kelly taunts him. After clearing out the CPU complex, the Player goes to the Central Bridge which is positioned within a massive chamber leading to multiple sections of the facility. The Player must reach Central Processing where Sergeant Kelly is located. However, he first needs to find Steve Toolosse's PDA to gain access.

The Player heads to the Server Bank and recovers Toolosse's PDA. There is also an informational video on the BFG 9000. The video reveals that small arms ballistics can cause the BFG projectile to detonate prematurely.

The Player makes it to Central Processing, where he finds Sergeant Kelly waiting for him. The Sergeant has been transformed into a hideous tank-like monster called Sabaoth. He has also integrated Campbell's BFG into his body, and uses it against the Player. The Player, however, uses his newly acquired knowledge of the BFG's weaknesses against Sabaoth. After an extended fight, the Player defeats his former commanding officer, and takes Campbell's BFG for himself. He then heads down into Sublevel 9 and takes the elevator to the next level: Site 3.

PDAs

 * Steve Tooloose

Video disks

 * BFG 9000 Briefing

Characters

 * Sergeant Kelly (as Sabaoth)

Enemies

 * Sabaoth (Boss)
 * Imps
 * Commandos
 * Chaingun Commandos
 * Revenants
 * Trites
 * Arch-Viles
 * Wraiths
 * Cacodemons

Weapons/Items

 * Grenades
 * Chainguns
 * Plasma Guns
 * BFG-9000
 * Medkits
 * Adrenaline
 * Security Armor
 * Armor Shards
 * Bullets
 * Shells
 * Clips
 * Ammo Belts
 * Plasma Cells
 * Rockets
 * BFG Cell