Data Storage Security | Walkthrough Quake 4 Guide

During the ride, engineer will upgrade your Railgun (it'll break through every armor). Wait patiently until you'll travel down and start exploring the rooms of the complex.

There's nothing to worry about during the march. None creature will show up in the surroundings, so collect scattered items here and systematically move forward. First troubles will start after reaching the control panel - the short animation should inform you about it. From the device placed on the wall "will born" new monster (#155), demoniacal lady shooting rockets - Iron Maiden. Kill her and approach the interface. When you push the button (#156), the lights will turn on and so far quiet machinery will start to work.

Regroup

All rooms were cut off from themselves due to the fences (#157) and it's necessary to open them with panels. Your main goal is to reach the elevator in one piece.

During braking through the next halls, you'll of course have to fight with enemies. There will be some Iron Maidens, Tacticals and one Teleport Dropper. Don't think much - consistently eliminate opponents, trying to get as little hits as you can. After reaching the elevator (#158), push the button and return to the top.