Hey guys, I went ahead and created a guide to the basics of mapping. It includes a variety of information such as construction techniques, required entities, some image visuals to explain issues, and tool and wikis for further reading.
You can check it out here:
http://steamcommunity.com/sharedfiles/f ... =243802847
It's important to know that this guide is not comprehensive or designed for intermediate/advanced mappers. It is merely a base for starters to learn from.