In a blast from the past, the unreleased Wanton Destruction add-on for Shadow Warrior has found its way online, and you can download a copy from FileShack. Head over to the 3D Realms site to find out about the history of the add-on.
Wanton does work with JFshadowwarrior.
I renamed the WT.grp to SW.grp and it works a treat.
Wow, talk about nestalgic. I just found my original copy of Terminal Velocity. Played it on an old comp tonight ^_^