For future reference (possibly for a map bug section), earlier versions of this map had several build oddities including "...bits 9-15 are unused, EXCEPT for a large section of e2m7, where every wall on the border of the section has bits 9-15 set..." (From the Unofficial Doom Specs v1.3). --Splarka (talk) 06:34, 15 September 2006 (UTC)

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