Given the amount of time that gamers have been playing the original Team Fortress, it's no wonder that Valve has designed the upcoming Team Fortress 2 with longevity in mind. One aspect of that design process is map layout: a randomization algorithm will reconfigure the map every time a game is launched. The result will be a multiplayer game requiring much more than simple map memorization and sniper rifle spawn camping. The post on Computer and Videogames offers a video featuring project lead Robin Walker describing the complicated process of making every random map work well.
"As for how the dynamic maps work in practice, that was hard to judge. The match we played on Hydro, the first map to use this special game mode, was enormous fun. But as extensive as our playtest was, they didn't let us play on the map for three years, and that's the kind of heavy use under which this system should flourish. What we did notice is that this is not just a Battlefield type system with some control points 'locked'. When a point is not in play, routes to that section of the map are physically blocked off, so the physical shape of the map is different for every combination of points. That forces you to revise your mental picture of the map, and see it as fresh again."
Sounds like fun.