Metamod is a mod loader with basic plugin API. It will not provide any functionality on its own.
"GameInfo" { game "Counter-Strike 2" title "Counter-Strike 2" title_pw "E58F8DE68190E7B2BEE88BB1EFBC9AE585A8E79083E694BBE58ABF" LayeredOnMod csgo_imported FileSystem { SearchPaths { Game_LowViolence csgo_lv // Perfect World content override Game csgo/addons/metamod Game csgo Game csgo_imported Game csgo_core Game core ...
Whenever CS2 updates, you need to edit gameinfo.gi again, because when you update the server, the file is automatically overwritten to the default one.