The single player campaign for Call of Duty Modern Warfare 4 has leaked onto piracy networks ahead of its full commercial release. Groups bypassed digital ownership checks immediately after the publisher opened the early access period for customers who bought special editions. Despite the security breach, legitimate player feedback on Steam remains positive.
Reports of the cracked PC files first surfaced through a discussion thread on Reddit. The exploit succeeded because the narrative campaign does not require a persistent internet connection to run. Once crackers removed the initial ownership verification, users were able to play the story mode completely offline without authenticating their client.
Call of Duty Modern Warfare 4 arrives in full across PC and home consoles later this week. Legitimate early access players currently have full access to the story, which is already earning strong user ratings on Steam. The publisher has not issued a statement regarding the leak or whether mandatory online checks will be implemented before the general retail rollout.
