How could you kill yourself with a headshot

As long as you're not moving (as in not pressing w, s, a, or d) the scout is relatively accurate while you're falling (only when falling, while jumping your accuracy is not good)

example:

Since this question was bumped:

Make sure you have all your workshop settings set up correctly:

• Put your API key in the command line using -authkey or putting it in webapi_authkey.txt in the csgo directory.
• Put +host_workshop_collection 416015088 in your startup line.
• Put +workshop_start_map 319603095 (or another map ID from the list) in your startup line.

However, even with all that said, there's one last thing that will cause a problem:

If you use CS:GO's built-in map voting and use SourceMod, you must disable SourceMod's nextmap plugin by moving addons/sourcemod/plugins/nextmap.smx to the addons/sourcemod/plugins/disabled/ folder.

This is because SourceMod will override the server's next map if a plugin tells it to. Which the nextmap plugin does on startup.