As per MAHQ:

Unit type: prototype assault mobile suit

Armament: beam saber x 2, beam cannon x 2, beam boomerang x 2, CIWS x 2, beam rifle x 1
Pilot: Athrun Zala

Mechanical designer: Kunio Okawara

After looking at the specs further, I disagree with the assumption that this unit is a close-combat oriented suit. Just as with every unit used by Athrun Zala (Aegis, Justice and Saviour), this suit is well rounded and gives it's pilot multiple style and tactical options depending on a given situation. The large difference between this unit and it's designed counterpart, Strike Freedom, is mainly in purpose. Kira Yamato has personal experience in combatting the DRAGOON system, and as such can estimate a proper use. Infinite Justice seems prioritized over short, mid and to an extent long, but not at the extreme ranges intended for Strike Freedom.