I have played a handful of Mechadon levels but they were all within the context of community projects. Granted, his outstanding work in larger pieces like Claustrophobia 1024 was why he was chosen as Doomworld's Mapper of the Year in 2009. A large portion - the majority, even - of Brett's material is actually created for multiplayer mapsets. This is a major aspect of his pie-in-the-sky project, Supplice. His single-player solo work is much rarer but he tends to use his powers for good, e.g. bailing out megaWADs in crisis. Counterattack is its own thing, though, a set born from his submission to the first Vinesauce Mapping Contest (this one's MAP02). The rest of the material was built bafflingly quickly and released in early 2017. There are about nine map replacements in all consisting of five normal, two utility, and two bonus. The set is meant for play in Boom compatible ports but the engine has got to pack some horsepower under the hood. It was specifically tested in PrBoom-Plus, ZDoom, GZDoom, and Eternity.
