Community Chest 4 (CCHEST4.WAD)

The Community Chest series is one of Doomworld's oldest institutions, with the first outing published in 2003. Now it's 2012 and between Duke Nukem Forever, Black Mesa, and the release of Community Chest 4, all signs point to the apocalypse being nigh. Doomworld forum superstar Eric "The Green Herring" Baker took full control of the project after some drama I was fortunate enough to avoid. The short story is, hey, here's Community Chest 4! It comes with a sweet-ass texture pack that's seen a lot of use prior to this release, most notably skillsaw's Vanguard from 2011 (but I know there are many more, and not just because I've seen whining about overuse of the resources).

Doom 2 Unleashed (PC_CP.WAD)

Paul Corfiatis is a veteran Doom mapper, the author of ancient WADs like The Twilight Zone. Upon releasing his Whispers of Satan megaWAD with best Doom buddy Kristian Aro, he opted to start a community project, which debuted in 2011 as Doom 2 Unleashed. It's a forty map megaWAD whose last eight levels constitute their own episode, titled "No Hope for Peace". The scope of the project was restricted to maps that functioned in any limit-removing port and used only stock Doom II textures. I'm not entirely sure how the bonus episode is handled outside of ports that support maps in excess of 32, let alone custom episode definitions, but in ZDoom NHFP shows up as a selectable episode, backed by the soundtrack from Inferno.