Skill Identifiers

Skill Identifiers (SI) are unlockable bonuses that can be chosen at the start of every game. They grant certain effects that allow players to further specialize their Military Occupational Specialties into specific roles. A maximum of two SI can be chosen, and they cannot be changed over the course of that game.

Most SI can be unlocked by reaching a certain amount of experience under the three Rank Sets - Enlisted, Warrant Officer, or Commissioned Officer. Some SI, however, can only be unlocked by completing the game in a certain way. Unlocking an SI under one of the Rank Sets makes it available to the other two, however not all SI are available for all three (e.g. Power User can be used as a Warrant Officer, but not as an Enlisted.).