VMF Files

[DrKittens]

Best bet would be to look online for tutorials on how to do things, or better yet ask away in the mapping channel of the discord. Most mappers online (including Valve) are very careful for who they give the vmf too, considering there is a lot of work put into maps where people can steal ideas/games/props. I'd highly praise creators such as TopHattWaffle for guides and helpful tips on map creation, he usually provides vmfs with all of his tutorials.