MAP01: Secret Operation 1 is one of the two top-secret bonus levels of Memento Mori II. It was designed by Steve Towle and uses the music track "Avalanche" by Mark Klem. It contains a separate area for multiplayer competition. This map and MAP02: Secret Operation 2 are not included in the regular PWAD. To play them, you must download the Memento Mori II infopack, rename the file MM2INFO.DAT to MM2INFO.WAD, and load it alongside MM2.WAD (and, optionally, MM2MUS.WAD.) Some modern source ports can load the .DAT as a .WAD without any renaming needed. This map replaces MAP01: Outpost.