bhoptimer VS csgo-practice-mode

While your timer plugin is nice, it doesn't support switching between gamemodes. This means without a bunch of setup (which newer servers definately wont go through), the timer is not suited for certain gamemodes like minigames that switch between obstacle course and death matches. And as you said yourself, you have no intention of supporting this

If you set up your own server (using something like this and then install csgo-practice-mode on it you can have very similar features.

Install practicemode correctly

It's free and can be found on his github here. But you need a dedicated server to host it on

You could try setting up a server with splewis' practice mode. There are youtube videos that can help you set it up.

Practice mod by splewis is the closest one to Refrag; https://github.com/splewis/csgo-practice-mode

I don't think that exists as a command a part of the base game, they're probably using practice tools like https://github.com/splewis/csgo-practice-mode or refrag.gg

There is a server plugin called Practice Mode that simplifies what I believe you're trying to do - look into .spawn command here:"GitHub - splewis/csgo-practice-mode: CS:GO Sourcemod plugin for private team/individual practice servers" https://github.com/splewis/csgo-practice-mode

If you only want just practice server, either host own server using tool like CSGOSL and install Sourcemod + csgo-practice-mode.

For the mod, its a practice server mod. You'll need to set yourself to admin in order to activate it (Hopefully the video demonstrates it). https://github.com/splewis/csgo-practice-mode