In the gaming world (especially for franchises like Call of Duty or Assassin’s Creed ), developers use Roman numerals for chapter headings. often refers to a "Update Patch Document." Translating XXV XXV XIII XIV gives you 25.25.13.14 – which looks strikingly like an IP address or a port number for a private server. In the context of an exclusive update, this translation unlocks a hidden beta access.