What’s your budget for this?
How many clients is it serving?
You’ll need something like 1T
Gb/s Internet connection to serve end users, I take it that’s in place?
Normally for a gaming server, you’d lease a remote server as it can be very expensive to build one as well as have the required infrastructure
https://www.pcspecialist.co.uk/forums/threads/help-please-gaming-community-server.91299/