MAP22

A level called MAP22 appears in each of several different games and megawads:


 * MAP22: The Catacombs in Doom II
 * MAP22: Habitat in TNT: Evilution
 * MAP22: Impossible Mission in The Plutonia Experiment
 * MAP22: Burnt Offerings in Doom 64
 * MAP22: Factory: Forge in Strife
 * MAP22: Rubicon in Alien Vendetta
 * MAP22: Thematic Elements in Community Chest 2
 * MAP22: Resistance is Futile in Hell Revealed