Operation: MDK is the fourth mod released by Wes Desjardins. It was released on August 25, 2002.
It contained 34 levels, played in an EXE based on registered Wolfenstein. One of relatively few changes included new episode names.
The Read Me file includes help art intended to be read after finishing the episodes.
A handful of new graphics are featured, including hand-drawn bosses.
It is still available for download via the Wayback Machine.