MAP31: Desiderium (Counterattack)

MAP31: Desiderium is the first secret map of Counterattack. It was designed by Brett Harrell (Mechadon) and uses the music track "Field Wandering," by Psychedelic Eyeball.

Secrets

 * 1) After getting the yellow keycard, use it on the switch near the starting point, then go down the steps a bit. Press on the terminal with an image of a planet to lower a wall at the bottom of the steps, and enter this secret area to find medikits and boxes of rockets guarded by chaingunners. (sector 4321)
 * 2) Open the door near Secret #1, then head east around the crates to the open vent. Follow the trail of health bonuses until you find a switch. Backtrack a bit and you will find a set of steps leading up. Jump past the broken vent across to the switch you find, then go back to the previous set of steps. Head further west, then north to get a plasma gun. (sector 1016)
 * 3) If you go west from Secret #2, you may find a lift that you cannot use yet. Return to the switch that revealed Secret #2. If you approach the switch, a lift will lower. Quickly hop one block to the west, then look north and shoot the eye switch before it closes. After doing so, return to the lift and use it up to a teleporter. On the other side, flip the switch and fall further into the vent until you find another lift. Take it up to obtain the red keycard. (sector 4224)
 * 4) In the southeasternmost crate room, use the lift to head up to the ledge above, then go to the left end of the ledge. Drop onto the crate below and jump onto the crate that has the energy cell pack. (sector 3170)
 * 5) With the red key from Secret #3, head to the leftmost part of the map with the large crate room. To the southwest, you can find an open crate with a BFG9000. (sector 4023)
 * 6) In the same crate room as above, head to the northeast part of the room. There is a translucent crate here, where you can find a hidden exit door. Take it, then flip the switch at the end of the dark corridor to reach the secret exit. The switch to open the exit is on the backside of the pillar, with an arch-vile directly on top of the secret exit. (sector 4153)

Current records
The records for the map at the Doomed Speed Demos Archive are:

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