One thing I've been constantly thinking about for the last two months is how do you scale map/wad difficulty in Doom. What do you say to someone when he asks how hard a certain map/wad is, what is the hardest/easiest map/wad. There is a lot of problems with answering that question.
The difficulty in Doom depends on many things: what difficulty level did you choose (obviously), what do you count as beating the map, whether or not you are using saves, continuous vs pistol start and eve