E2M4: Weapons Testing Facility (The Lost Episodes of Doom)

This level occupies the map slot E2M4. For other maps which occupy this slot, see Category:E2M4.

The Lost Episodes of Doom maps
Massacre on Callisto
The Killing Fields of Io E2M1: Io Anomaly E2M2: Io Munitions Works E2M3: Io Toxic Disposal Plant E2M4: Weapons Testing Facility E2M5: Io Training Camp E2M6: Io Military Garrison E2M7: The Draining Pit E2M8: Late For Supper
Hell's Gate - The Red Spot of Jupiter

E2M4: Weapons Testing Facility is the fourth map of The Killing Fields of Io, which is the second episode of The Lost Episodes of Doom. It was designed by Christen David "Chris" Klie.

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