MAP10: Containment Area (Console Doom)

MAP10: Containment Area is the tenth level of most console versions of Doom, based on the original E2M2: Containment Area with modifications made to adapt the level to the consoles' memory and storage limitations. The author of the conversion is American McGee, and the original map authors are Tom Hall and Sandy Petersen. The map first appeared on the Atari Jaguar, and was later ported to the 3DO, Sega 32X, Game Boy Advance, Sony PlayStation, and Sega Saturn consoles. Due to its original size, it is one of the most radically altered levels, with nearly half of the original geometry removed.

Essentials
Before moving southward collect the green armor and the shotgun. The armor lies to the right of you starting position. The position of the shotgun depends on the current skill level. On the easy skill levels it is put on the floor near the armor and a box of shells lie on the crate. On all other skills the shotgun is put on the crate. You should lower the crate to get these items. Flip the switch on the wall to lower the crate.

Move southward and turn left. You will see the first berserk pack in the game (unless you visited the Military Base). Take it and turn right. You will see a metal arch behind which is a room spanning southward. If you want you may explore the other parts of the crate maze. In any case you have to go to the room behind the metal arch.

Yellow key (optional)

When looking on the arch, head left (east). You will see small gray crates making a staircase. Ascend on them and collect a stimpack and another armor. Drop down to the next portion of the corridor. If you turn left here you will come to a dead end with the third armor (you can take it later). Head to the north and you will meet a door. Kill imps and take some items in the "alcoves" between crates. Enter the door to be in a room. There are three locked doors and the keycard in the consequent room. If you take the card, the three silver pillars will rise. Flip the switches on each of the pillar to open the doors. Behind the central door is a rocket launcher. Behind the other ones are group of enemies (kill them with the new weapon or use the desired one).

Also, if you flipped one or two switches and after comming back to the room of pillars they all have been lowered, you still can flip the switches while they are "sunk" one by one every time returning there. First, flip the switch on the right, east, pillar to open the central door with the rocket launcher. Then, flip the other switches to open the rest of the doors. Therefore, you can exploit blast damage against the enemies as long as they do not leave their rooms.

With the yellow key, get back to the place of the crate maze where there were the berserk pack and the first door. Behind the door is the yellow door. Open it but be careful. There is an inescapable nukage pit. First, destroy the demons with an impack weapon while you are standing near the door. When they are dead, flip the switch on the other end of the room. The pit will soon vanish and the chaingun will be accessible.

Blue and red keys

Now move into the room behind the metal arch and toward south. To open silver door press the switch. Step on the platform to make a staircase. Ascend to a room with lamps in the middle. Head to the left, and you will be in a nukage room with two islands. Both islands contain items. Get to the other side with the blue keycard to get it. Once picked up the key go to the revealed passage to the right, which is the shortcut to the large room. Descend to the blue door (killing a demon on your way). Open the door and you will be back in the familiar room. Open another blue door to the right. Behind is the red keycard.

Return to the staircase and to the room with the lamps in the middle. Now take either right (west) or a corridor ahead (south). Both paths guides you to the exit but if you choose to go to the south you can find items and the fourth armor in a room. If you choose the west going to the extreme end and collecting two stimpacks, you will eventually discover a room with blue armor, ammo clip and two shotgun shells.

In the south west you can see a nukage pool and two doors. One of which is the inaccessible exit. You need to build a bridge to it. Open the second door which requires red key. Behind is a room with imps and a switch that will build the bridge. Now you can finish the level.

Secrets

 * 1) In the north region of the map is a square concrete corridor, accessible through a door just south-east of the start point. This corridor surrounds a central chamber which requires the yellow keycard to enter. Inside is a chaingun on a pillar (sector 38), which can be lowered by pressing the switch on the north wall. (Note that if you fall into the nukage pit before pressing the switch, you cannot get out.)
 * 2) In the north-eastern room at the end of the crate maze, approach the yellow keycard and backpack to make three metal pillars rise. There is a switch on the north side of each pillar that opens a door in the previous room. All three of the alcoves behind these doors (sectors 78, 79 and 80) count as separate secrets and contain a box of rockets, a rocket launcher and a box of bullets.
 * 3) See secret #2.
 * 4) See secret #2.
 * 5) After climbing the rising stairs, turn right, take the first left and turn left again to enter a dark room. There is a switch on the north side of the first rectangular pillar, which temporarily lowers the second pillar to the east (this switch only works once). Step on top of this pillar (sector 46) to collect a plasma gun. (If you are still on top of the pillar when it rises again, press the switch on the north wall to lower the pillar permanently. The switch can also be activated from below.)
 * 6) In the blue keycard room, there is a brightly-lit triangular sector in the south-east corner of the room. Stepping on this triangle temporarily lowers a floor across the nukage pool - step on to this floor (sector 112) before it rises again to collect a soulsphere. (If the floor rises while you are standing on it, press on the north wall to lower it again and let yourself out.)

Bugs
The chainsaw room is still present in some console versions and is normally inaccessible. Because the hallway leading to it was removed, it is normally impossible to get into this room and therefore to get 100% kills and secrets. In the Jaguar version, it is possible to clip into the area using a glitch with the rocket launcher. This was fixed in the PlayStation and Saturn versions, which remove the orphaned rooms.

One barrel (thing 90) has no flags set for any of the three difficulty classes, so it does not actually appear in the level.

Comparison of versions
Compared to the PC level, a large amount of changes were made to the console version to simplify it for the limitations of consoles.

Removed areas

 * The entire western section of the crate maze has been removed.
 * The north and west hallways around secret #1 have been removed.
 * The western hallway from the central room with four pillars and the nukage river it leads to have been removed.
 * The crusher hallway and the yellow keycard room were removed.
 * The three hallways with flashing blue lights in the west of the level and the three sets of quadrant-shaped lifts in the southeast of the map, along with their associated secret areas, have been removed.

Room design

 * All switches use a red/green light on metal wall texture (SW1MET2).
 * A number of small crates are removed from the south-west corner of the crate maze.
 * The yellow keycard is moved to the north-east corner of the map, next to the backpack.
 * The blue keycard room is moved further west, into the space where the yellow keycard room used to be. This area is connected directly to the crossroads past the rising stairs by a hallway.
 * The exit door is now separated from the rest of the level by an isolated nukage pit. The pit itself is shallower.

Monster placement

 * Two revenants appear in the south-west corner of the crate maze on Ultra Violence skill level (UV).
 * Three demons that appear in the level on UV are replaced with nightmare spectres:
 * One in the room behind the yellow door (secret #1).
 * One at the bottom of the staircase north of the blue keycard.
 * One in the dark room north-east of the exit area (secret #3).

Music
The map uses the following music tracks:

Player spawns
This level contains four spawn points:
 * 1) facing south. (thing 139)
 * 2) facing south. (thing 140)
 * 3) facing east. (thing 141)
 * 4) facing south-west. (thing 144)

Things
This level contains the following numbers of things per skill level: