Entering Death is a Single Player level in Q2. This level also has the same geometry as Ultimate Destruction, most of the differences besides texturing are in regards to Enemy and Ammo placement. This level has the same geometry as Harmony, though placement of Ammo and Weapons is entirely different.
Turn left and collect the Shells. Collect the Double-Barrelled Shotgun while killing the Grunt. Go through the doorway to the right and kill the 2 Grunts. Go through the doorway on the opposite side of the room. Kill the Ogre and Rottweiler. Collect the Shells in the middle of the room and the 25 Health in the upper right corner. Go through the doorway to the left and turn left into the doorway near the end of the corridor. Kill the 2 Grunts, then head into the next room across from the other doorway. Kill the 2 Rottweilers while collecting the Shells and 25 Health. Go through the doorway on the upper left side of the room, then kill the Grunt while proceeding down the corridor. Turn left into the next doorway. Kill the 2 Grunts and cross the corridor to the next room. Kill the Ogre while collecting the Nails and Super Nailgun on the left side. Continue forward through the next doorway; then kill the 2 Grunts and the Rottweiler. Turn right and follow the corridor to the end, collecting the Nails. Turn right into the next doorway and kill the 3 Grunts. Collect the Shells on the left side of the room. Go through the room to the next doorway and kill the 2 Grunts. Continue down the corridor and go through the doorway at the end to kill a Fiend.