Vanguard is a episode replacement PWAD for Doom II, by Paul DeBruyne (skillsaw). It is a winner of 2011's 18th Annual Cacowards. The mapset requires a Boom-compatible source port. It contains 12 maps and a humorous "bonus" thirteenth level. Inspiration sources include Speed of Doom, Scythe 2, Alien Vendetta, and The Plutonia Experiment. It was originally meant to be a "32-level speedmapped megawad inspired by Speed of Doom's development cycle and Scythe 2's episodic structure."