http://imgur.com/a/KjrgN
after one week of mapping for the first time i'm beginning to actually map.
i'm keeping two "maps". one with the general outline, and the actual map in wich i will put monsters, details, funcs and see how it evolves.
some guidelines that i have found useful:
* try to work most of the time with a grid of 16 for brushwork.
* see the sizes of most textures (64x64 , 48x48) and the size of brushes when you get misaligned textures.
* be wary of non-integer vertices on important brushes
* don't think in spectacular ideas and maps. at least not for the first map.
* try ideas in the editor and see how they look ingame
* practice with all the shortcut keys to work faster
* rotate textures when it's necesary. and inspect them when you rotate or flip brushes.
* learn about clip textures and how help gameplay by "smoothing" floors and walls
skacky streamed this:
https://www.twitch.tv/skacky/v/109342973
i can't make rooms like that and make them look good in two hours
but i find useful seeing the "workflow" of making a map by a seasoned mapper