The multiplayer suite introduced several "firsts" for the franchise:
Advanced Warfare ’s co-op mode, "Exo-Survival," technically required an online connection. The CODEX crack allowed offline LAN play and solo survival by spoofing the local server authentication. Call of Duty Advanced Warfare-CODEX
: NVIDIA® GeForce® GTS 450 @ 1 GB or ATI® Radeon™ HD 5870 @ 1 GB : Version 11 : 55 GB available space Activision Support Common Fixes for the CODEX Version The multiplayer suite introduced several "firsts" for the
Interestingly, the cracked version became a haven for modders. Because the EXE was stripped of Steam integration, modders found it easier to inject custom maps and weapon stats into the version than the retail version (which had file integrity checks). Call of Duty Advanced Warfare-CODEX