Most basic save editors allow you to max out your currency (Supplies) or unlock all weapon skins. The "Army of One" feature goes deeper by manipulating the Player Profile JSON Blob embedded within the save file. This feature allows players to bypass the game's hardcoded class restrictions, effectively allowing them to equip the perks and primary weapons of one character class onto any other class.
To reach Prestige 4 on a single class, you must reach level 30, reset your progress (losing all perks), and do it again four times. Doing this for every class is repetitive. A save editor bypasses this, allowing you to experience high-level builds instantly. world war z save editor