Rank (Halo 4)

Spartan Rank is the primary ranking system used in Halo 4. Players are promoted after accumulating an amount of experience points (XP) through multiplayer (i.e. by playing War Games and Spartan Ops, completing Commendations and Challenges) and Forge matches. After reaching level 50, players are allowed to earn specializations.

Overview
Players begin their careers in the base SPARTAN-IV ranks. There are 130 ranks in total, from SR-1 to SR-130, unlocking gameplay and visual customization items as the player ranks up.