Heated

Heated is a Single Player level in Q2.

Walkthrough
Collect the Double-Barrelled Shotgun to your left. Ignore the doorway in front of where you started and instead go through the one currently in front of you. Kill the Grunt in the corridor and proceed into the next room. Kill the Grunt and Rottweiler, then go through the doorway to your left. Kill the Grunt in the corridor and proceed into the next room. Kill the 2 Grunts. Collect the Grenade Launcher to your left, then go through the doorway to the right. Follow the corridor to the end and turn right. Kill the 2 Grunts. Collect the Green Armor in the upper right corner, then go through the doorway in the upper left corner. Turn left in the corridor, then turn right at the end into the next corridor. Follow this corridor to an alcove to the left. Kill the 2 Rottweilers and collect the 3 Nails, then continue down the corridor. Enter the room at the end of the corridor. Kill the 2 Grunts. Collect the Nailgun in the lower right corner, then go through the doorway in the upper right corridor. Turn right at the end of the corridor, then follow the hallway into the next room. Kill the 2 Grunts and the Rottweiler while collecting the 3 Rockets. Go through the doorway straight ahead and follow the corridor into the next room. Kill the 2 Spawns, then go through the doorway straight ahead. Turn right at the end and kill the 2 Ogres while collecting the three 25 Health. Following the corridor to the right, turning left, turning left again, turning right, and continuing forward into the next room leads back to the start.