Counter-Strike: Classic Offensive is a CS 1.6 remake in CS:GO | PC Gamer
Classic Offensive mod - Mod DB
Counter-Strike: Classic Offensive - MultiPlayer - Modifications - Source Warehouse (HL2) - First Person Shooter
Classic Offensive Mod - Download
Classic Offensive mod - Mod DB
ModDB on Twitter: "Counter-Strike: Classic Offensive mod by @DS9ZooL, which turns #CSGO into 1.6, adds christmas-themed classic maps https://t.co/02dOER4Kho https://t.co/xY5IC43afB" / Twitter