The teamarena_beta1_2.zip file you have requested: Modifications / Other Mods / Team Arena Beta 1.2 - 750.55kb is not available. Perhaps try browsing all files for the game Half-Life and upload any files you want to share or are missing. This is the only information we could locate:
The purpose of this mod is to help Clans setup Team and 1on1 matches. It does NOT change the gameplay in any way (for example Weapondamage etc. are untouched). It only adds the following features to the existing Half Life Deathmatch Teamplay.