What are you favorite maps that aren't in official rotation?

Some of my favorites are Vigil (https://steamcommunity.com/sharedfiles/filedetails/?id=1266210012, Payload), Synthetic (https://steamcommunity.com/sharedfiles/filedetails/?id=1549817316, KoTH), and Barnblitz Pro (https://steamcommunity.com/sharedfiles/filedetails/?id=2562184861, Payload) (Really don't like the last point of vanilla Barnblitz, I think the Pro version fixes it up a good bit). What are yours?