Unreal

Unreal is a Single Player level in Q2. This level has the same geometry as Deamon's Gate/Demon Gate, though placement of Ammo and Weapons is entirely different.

Walkthrough
Collect the Double-Barrelled Shotgun beside the doorway. There is another doorway to your left, ignore this one and go through the doorway straight ahead. Kill the 2 Grunts and the Rottweiler. Collect the two 25 Health to the right, then go through the doorway straight ahead. Kill the 2 Grunts, Ogre, and Rottweiler. Go through the doorway to the left, ignoring the doorway straight ahead. Kill the 2 Grunts and the Ogre. Collect the three 25 Health to the left, then go through the doorway straight ahead. Kill the Rottweiler. This is the middle of the map, there are four doorways in this room leading to opposite sides of the level. Go through the doorway to the left, then collect the Grenade Launcher to the right and 3 Rockets to the left. Go through the doorway straight ahead to kill the 2 Zombies and the Fiend. Collect the Nailgun in the upper right corner, then go through the doorway to the left while ignoring the doorway to the right. Kill the 2 Grunts and the Rottweiler. The doorway straight ahead leads back to the starting room, so instead go through the most recent ignored doorway. Kill the 2 Knights and the Ogre. Go through the doorway straight ahead to kill the Knight and Ogre. Go through the doorway to the right to kill the Ogre and 2 Zombies. Collect the three 25 Health to the left of the doorway, then go through the doorway. Kill the 3 Grunts and collect the 3 Nails in the lower right corner. Ignore the doorway straight ahead and instead go through the one to the right. Kill the Rottweiler and Zombie. Collect the Rocket Launcher in the lower right corner, then collect the Green Armor and 3 Rockets in the upper right corner. The doorway straight ahead leads back to the middle of the room, so instead return to the last previously ignored doorway and go through it. Kill the 2 Scrags, then collect the Pentagram of Protection beside the doorway straight ahead. Go through the doorway and kill the 2 Knights. Collect the 2 Shells to the right, then go through the doorway straight ahead. Kill the 2 Grunts, then go through the doorway to the right. Kill the 2 Ogres and 3 Grunts, then go through the doorway straight ahead. Kill the 4 Grunts. Ignore the doorway straight ahead and instead go through the one to the right. Kill the 2 Scrags. The doorway straight ahead leads back to the middle of the room, so instead return to the last previously ignored doorway and go through it. Kill the 3 Grunts, then go through the doorway straight ahead. Kill the 2 Grunts and the Zombie. Go through the doorway to the right to kill the Grunt, then collect the three 25 Health to the right. Go through the doorway straight ahead. Kill the Grunt and collect the 2 Shells to your right. The doorway straight ahead leads back to the first room you were in that led to the middle room.