From the Back Cover Yo Joe! Cobra is at it again in this Adventure Series for the G.I. Joe Roleplaying Game! Operation: Cold Iron presents a four-part adventure that tsakes your GI Joe characters up to 6th level. Your squad will face dangers from the fiery deserts of Addis Adaba to the frozen plateaus of Siberia and beyond. This introductory Adventure Series can be used immediately after playing the "Snake Pit" and/or "Emerald Oubliette" introductory adventures. This book contains everything you need to run an action and intrigue-filled adventure from 2nd level all the way to 6th level. Complete an epic world-spanning adventure New enemies to face, settings to explore, and maps for tactical combat Get behind the wheel of classic G.I. Joe vehicles like the Polar Battle Bear and the Snow Cat Face off against iconic Cobra tech like the H.I.S.S. Tank and the S.N.A.K.E. Cybernetic Armor Requires the G.I. Joe Roleplaying Game core rulebook to play.