E2M4 (Back to Basics)

E2M4 is the fourth map of Back to Basics. It was designed by Esa Repo (Espi).

Secrets

 * 1) In the blue key area, go to where the key is and jump out the window to the central platform. Press on the recessed wall to find a computer area map. (sector 182)
 * 2) In the central room with the wooden block and the eye on top of it, take a lift up to the higher floor. To get this secret, you need to run towards this eye and get on top of the block, which will teleport you to the east side of the map. This area has a soul sphere. (sector 450)
 * 3) When you get to the big area at the south end of the map, stay on the high ledge and head to the east side where there are two tunnels with satyr switches on the sides. Press on the lit one to lower the floor, then head east to get a green armor, five armor bonuses, and a berserk pack. (sector 456)
 * 4) When you get to the big area at the south end of the map, stay on the high ledge and head to the west side. Go up the steps to a terminal and a yellow door. Use the terminal, then backtrack to the northwest end of the map. A door with yellow bars is now open, so take the lift behind it and you will eventually find shotgun shells, a medikit, and the yellow key. (sector 444)
 * 5) With the yellow key from Secret #4, return to the yellow door and open it to get a BFG9000 and energy cells. (sector 429)

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

Player spawns
This level contains eight spawn points:
 * 1) facing east. (thing 324)
 * 2) facing south. (thing 325)
 * 3) facing north-west. (thing 326)
 * 4) facing west. (thing 327)
 * 5) facing north-east. (thing 328)
 * 6) facing south. (thing 329)
 * 7) facing south-west. (thing 330)
 * 8) facing south. (thing 331)

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