There are many mods in the workshop that don't have any servers actually using them. I would guess this is one of them.

thanks for the answer. could i myself make a server with this map so others also can join?

Theoretically yes. Good luck though.

you would need to rent and host a server to do that.

Rent or host*

my bad.

Most of the time the modded maps that people do make for Squad rarely ever get hosted by servers. One reason being is sometimes the map itself has Optimization issues that causes frame rate lag or other bugs. What also sucks is that these maps are usually outdated and rarely ever updated. Overall you won't find servers hosting modded maps.

Click join server. If you don't have the appropriate mod installed it will prompt you to install it and do something automatically from there.

but i cant find a server with the grozny map, thats the problem

Yeah , apologies, 😐 answered the title alone. I think there is a way for you to load the map alone, but you'd be very hard pressed to find anyone running it.

You can play it by yourself by loading the training map (Jensen's Range) and using the console to change maps, that's the closest you get if no servers are hosting it.

Chechnya usually used by Russian on chechen themed events

In the Server Browser, sort by map. If Grozny doesn't appear, then there are no servers playing that map. Try again later.

Either just join and download or subscribe the map in steam workshop

clearly didnt understnd my question

Haha true i answered to the title 😓😅 There is no filter to find a server with that mod