The zip file includes everything you need to simply start using Metamod: Source with a very complete SourceMod Installation, including SteamGroupadmins support, quakesounds, TKManager, Weapon Restrictions and a lot more.
This is based on Metamod Source 1.8.6 and SourceMod 1.3.7 with basic plugins for Counter-Strike: Source.
More info and the download over
here.