AREA51 is a Single Player and Multiplayer level. This level is intended for 2-6 players in Multiplayer.
This level was later used in Q2 as Descent to the Underworld and Underworld Prey. Q2 separated Single Player and Multiplayer, meaning these two portions were put in their own level instead of combined like in the original version. Beyond the renames, these levels used the Canton Level Theme found in all Q2 levels. Furthermore, Descent to the Underworld includes custom messages not found in this level.
Turn around and enter the room behind you. Kill the 2 Grunts. An Elevator exists here, but it is one-way and won't let you descend. Return to the starting room and ignore the room on the opposite side, instead going down the staircase to the left of that doorway. At the bottom, turn around and kill the Grunt underneath the stairs. Go to the right side of the room to pick up a Grenade Launcher and Nailgun on the two shelves. In between the shelves is a mantle that can be leaped to by either of the shelves. Upon climbing this, turn around to face the room. You should notice a box exists in the middle of this room with a small window on the side you are looking at. Inside is a Scrag that you can kill. Enter the room to your right and kill the 4 Rottweilers. Return to the previous room and enter the doorway on the opposite side. Kill the 2 Grunts and ride the Elevator, this is the same one that you saw earlier. Return to the first room and go into the doorway you previously ignored. A hole in the floor looks down into the room with the 4 Rottweilers. Ascend up the Elevator to your right to the next floor and turn around at the top. Turn left and kill the 2 Grunts in the long corridor. A hole on your side of the corridor overlooks the room with the hole. Continue down the corridor to the end. Dropping in this hole would lead to the first to second floor Elevator.
- Double-Barrelled Shotgun in middle of lower hole room.
- Nailgun in front of Elevator in lower to middle Elevator room.
- Nailgun in front of Elevator in middle to lower Elevator room.
- Super Nailgun at middle of upper hole room.
- Greande Launcher at opposite side of middle hole room from doorway to upper staircase room.
- Rocket Launcher at middle of upper staircase room.