Years has passed, yet this old mod, Tactical Ops 2.2 is still fun. You can download files from here.
Steps:
Step 1: Install Unreal Tournament from 1999 year.
Step 2: Install UT 4.36 Patch
Step 3: Install Tactical Ops 2.2 Free Mod
Step 4: Replace your files (UnrealTournament.ini / TacticalOps.ini / UBrowser.int - located under UnrealTournament/System) with these files: TacticalOps 2.2 Config
Congratulations, you just installed Tactical Ops 2.2 and you are able to play Online.
Also, be sure to visit our server (add it to Favorities!): Tactical Ops 2.2 Projekt Nostalgia with Echo Mappack IP: 178.252.18.58