How To Build a Custom Map? #1 Getting Started!

You may have wondered how to get started building your own maps. Now this is a solid start.
This is of course not everything but hopefully with this video's help you can get started and figure stuff out by yourself. If you would like to see more, give a feedback about it!
Any questions you may have, write them down in the comments. I hope some of you will start learning and creating custom maps!
To download stuff click here: zpozitive.eu/
To download my custom maps click here: www.moddb.com/...