2013 · ソースブック（プレイを拡張するルール／オプション）
SixGun
This Mutants & Masterminds Third Edition supplement presents a team of six cybernetic super-soldiers employed by a private military company. It includes character backgrounds, abilities, equipment, support personnel, and ready-to-use material for deploying the team in superhero campaigns. The book also examines the history and operation of private military companies, both in the real world and in superhero settings. Background on the mysterious Orion Private Security organization, full-color illustrations, and printable standees are included for use at the gaming table.
スキルベース（スキルを購入または獲得）ポイント制（ポイントを割り振ってスキルや能力を得る）特性／アスペクト制（性格がゲームプレイに影響する）
ゲーム情報（人数、プレイ時間、対象年齢、クレジット）の出典：BoardGameGeek。