Thread:Ycmking 29331/@comment-22439-20120728102422/@comment-3542404-20120728120045

As you work on a suit it levels up right? First you get soldier (Special) then Ace (Skill 1) then Veteran (Skill 2) (possibly reversed but never mind). After unlocking skill 2 if you fill the unit's EXP bar again it becomes level Custom 1. It's that easy!