MAP09: Stronghold (TNT: Evilution)

MAP09: Stronghold is the ninth map of TNT: Evilution. It was designed by Jimmy Sieben, with minor additions and touchups by Ty Halderman. It uses the music track "Sadistic" by L.A. Sieben shared with MAP01: System Control.

Overview
The level is notable for having many enemies. This sheer number of monsters almost entirely consists of hitscan-employing troopers, sergeants and chaingunners, who will often take potshots at the player from balconies and through windows. The somewhat confined layout of the map also adds to its difficulty.

Essentials
Red key

Head to the UAC-door on your right in the starting area (the windows with former humans are optional to visit). In the next room, you can see a locked door ahead. To open it, head upstairs on your right, turn around and flip the switch. Head into the open door. In the brick corridor, head right. Open the brown door (if you make any noise here enemies may already open the door, so use the barrels to your advantage). Go left and into a closet with a switch. Walls to the right and behind you will lower. The wall near you contains a shotgun guy (or nothing depending on your skill level). The wall behind you now leads you to a crate room. Ignore it for now. Flip the mentioned switch and head back to the previous brick corridor. A wall near the entrance has opened. Flip the switch to activate the lift going down to the laboratory. Eliminate everyone here (a chaingunner is at the southwest in this room, be careful). There are two switches to press. The left switch accompanied with blue "tei tenga" display builds the stairs up to a medikit and two small windows from where you can overlook other rooms and shoot the enemies. This one is optional to press. The one on the right which is accompanied with green display is required. Press it.

Backtrack using the lift to the aforementioned crate room. If you, for the first time, decided to visit this room you may notice that the brown pillar in the center of the room now became silver. Kill everyone here (use the barrels to your advantage). Lower the silver lift in the center and activate a switch at the top. This will build the stairs in the room. Use the stairs to get to the top of the tall wooden crate. From this crate jump over to the crate with the red keycard.

Blue key

With the red key, go to the long brick corridor. A wall is open now (a mob of enemies is unleashed now). Enter it and rise to the room. Flip the red switch in the south of the room. Get back to the brick corridor. Head to entrance from where you entered here for the first time and lower the metallic bars to a darker room. Press the red key switch to open the door. Enter this door leading to the second, similar to this, room. Head into the cargo room south. Climb on the crates to get to the west of the room. Enter a very narrow passageway and open the door. You are now about to open five doors here. Behind each one is an enemy. When you reach a room with a backpack be careful, as crowds of monsters will be in front of and behind you. Rise on the stairs and jump over to the crate with the blue keycard.

Exit

With the blue key, head back to the first dark room. Press the switch in the center of the room and flip another switch behind that requires the blue key. A wall will open in the north of the dark room. Enter this room and open a door to your right as you enter. This will lead you to a nukage room. Get to the east of this room by taking any border on either side. Walk around the wall and use a silver lift. This will lead you to a room with a green switch. Press it and backtrack to the first dark room.

In the dark room, open the blue door, go down and enter a large room. Grab anything what you need here and head into the eastern passageway up the stairs. The exit door will be ahead. Enter it and press the switch to end.

Official

 * 1) After getting the red key, you will see a narrow hallway through a window to the right. Press the use key against the window to lower it, letting you access the hallway. There is a blur sphere at the opposite end. (sector 383)
 * 2) In the same room as the first red switch (at the west end of the map) is a wall with flashing blue lights. Lower the wall with the lights like a lift to be taken up to a secret cache. (sector 138)
 * 3) At the south end of the map is a long hallway with a series of silver doors you must open before getting a backpack on a pedestal at the end. When you pick up the backpack, several alcoves open in the hall behind you, releasing enemies. One of these alcoves has a triangle on its back wall; open it to access a secret area. (sector 401)
 * 4) At one end of secret #3 is a second triangle on the wall; it acts as a lift up to a secret-in-a-secret, at the end of which you will find a berserk pack. (sector 404)
 * 5) At the north-northeast corner of the map is a room with a square sunken nukage pool. On the ledge in the southeast corner of the pool are two red lights visible in the walls. Open the wall between the lights to access a secret room. (sector 251)
 * 6) See secret #5 (the door and room sectors are both tagged as secret). (sector 252)
 * 7) At the eastern end of the aforementioned nukage pool room is a silver alcove; step in to be taken down to a new area. In this green room, open the wall to the right (with yellow lights along the bottom) to activate another lift up to a secret area with two teleporters in it. (sector 219)
 * 8) Inside secret #7 is a sunken brown floor alongside an "L"-shaped computer terminal. Stepping onto it registers a secret. (sector 253)
 * 9) While still in secret #7, take the right-hand teleporter. It takes you to the raised area back in the green room. (sector 269)
 * 10) Return to secret #7 once more, and take the left-hand teleporter. It takes you to a secret corridor all the way back near the level's start. (sector 238)
 * 11) In the stairway leading up to the room containing the exit door, there is a wall with two blue triangles on it. Open it up to reach the last secret. (sector 172)

Non-official

 * To the right of the blue UAC door are three blinking panels and a non-blinking panel. Press on the non-blinking one to find a secret room with a singular medikit.

Current Compet-n records
The Compet-n records for the map are:

The data was last verified in its entirety on July 5, 2020.

Current DSDA records
The records for the map at the Doom Speed Demo Archive are:

The data was last verified in its entirety on August 26, 2022.

Player spawns
This level contains ten spawn points:
 * 1) facing north. (thing 14)
 * 2) facing east. (thing 215)
 * 3) facing east. (thing 216)
 * 4) facing north-east. (thing 217)
 * 5) facing north. (thing 219)
 * 6) facing west. (thing 220)
 * 7) facing south-west. (thing 222)
 * 8) facing south. (thing 224)
 * 9) facing north. (thing 569)
 * 10) facing west. (thing 570)

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