10 New Ones is a mod by Thomas Weiling, released on October 15, 2011. As the title suggests, it is a simple mod consisting of 10 levels, similar to an episode, but is played in seamless level form.
It was made at the same time as the unreleased Wolf Overkill project, and was an easy, old-fashioned project when comparing the two. Originally intended as a bona fide map set including only map files and no EXE or graphics, a handful of new graphics were added and a simple EXE was coded by Havoc.
Thomas would eventually realize the idea of a map set the following year.