Completion of all 13 main missions, including the Resurrection DLC.
Every hidden item and campaign crate located and collected.
All campaign collectibles, including hidden items found in missions.
Before you install any save file, you need to know where the game stores its data.
If you prefer the satisfaction of earning the 100% completion status legitimately, use these strategies to speed up the process: Grind Levels in Co-Op Mode
If you're looking for help with specific, tricky achievements (like multitasking), check out YouTube guides from creators focusing on the game's finer points. Share public link
Never overwrite files without saving a copy of your original progress. Open Windows (Press Win + E ).
A: On Steam/Origin, no. Achievements are triggered by server events, not local files. You would need to actually earn the level online.
or "Upload Local Data to Cloud".