What COD MW4's Locked Safes and Doors Mean for Completionist…

For completionists, having every code in one place turns a scavenger hunt into a smooth checklist, cutting down on replays and missed optional items.

For completionists, having every code in one place turns a scavenger hunt into a smooth checklist, cutting down on replays and missed optional items.

Key points - Call of Duty: Modern Warfare 4's campaign includes safes, locked doors and lockboxes that require codes. - The codes are needed to find optional items hidden throughout the campaign. - Players who miss a code may need to replay a section or skip the contents. - A consolidated code reference lets players open locked containers without backtracking.

FAQ

Q: What are the codes for in COD MW4's campaign? A: They open safes, doors and lockboxes that hide optional items, so you'll need them if you want to collect everything the campaign offers.

Q: Do I need the codes to finish the campaign? A: They're tied to optional items rather than the main path, so they're for players hunting extras and collectibles rather than mandatory progression.

Q: Where can I find all the codes in one place? A: A regularly updated code reference keeps every safe, door and lockbox code together so you don't have to backtrack through missions.