Download these example projects:
https://github.com/geotavros/sandbrick
https://github.com/geotavros/sk_sandbrick

These projects are the sources of these maps respectively:
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=154628821&searchtext=
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=122743157&searchtext=

Extract in your working folder, e.g. D:\Work, you'll have
D:\Work\sandbrick
D:\Work\sk_sandbrick

Edit gameinfo.txt and add each or only one project:
The gameinfo.txt trick is used to keep your game directory clean from custom files. When testing your map before release you need to comment your custom SearchPaths, e.g.
//Game "D:\Work\sandbrick"

Run SDK Launcher and from it run Hammer.
In Hammer open file D:\Work\sandbrick\mapsrc\sandbrick_03.vmf
Hit F9 to compile this map.
The map will compile and will be opened in game. Same with sk_sandbrick.vmf

To rename your map you need to save VMF under different name, then compile it, then rename ALL the files in your project D:\Work\sandbrick to represent new map name, don't forget to edit each VMT and TXT file also.

To spawn bots you will need to generate a navigation mesh. Open map in game and type in console:
sv_cheats 1
nav_generate
For nav_generate to work you will need to have info_player_start entities around your map OR you can each time in game mark walkable positions with nav_mark_walkable command in console.