How do I make a gun game server like GamingAU.net CS #3 Pro Custom GunGame [DM?

I would liek to make to make a server like this one


http://www.game-monitor.com/cstrike_GameServer/125.63.51.238:27020/GamingAU.net_CS_3_Pro_Custom_GunGame_DM.html


I thought I just needed the csdm thing that GamingAU.net CS #3 Pro Custom GunGame [DM] has


they have csdm 2.1.2, I found it here http://www.bailopan.net/csdm/index.php?page=download


how do I make it so I have a gun game server like this?


I have to buy a server? how much are they? which site?


I dont know what to do after I buy the server


I just like the csdm 2.1.2,


I like the levels

I would like to have when you start, two options

normal

or nade level, you have to nade 3 times, then when on knive , you have to knive 3 people, I might change that later though


I dont know how to start, and I dont know almost any terminology how to make it so I have a server now


I read sites how to make a gun game server or server, but I dont get it

You can pay for a hosting company to host it for you or you can make it on your own computer . To make it on you'r own computer check this link http://www.tutorialecstrike.com/home.html , if you need any help feel free to ask