This issue is a variant of G.I. Joe Special Missions (Marvel, 1986 series) #6.
Zeck pencils credit confirmed and Beatty inks credit supplied by www.mikezeck.com (15 June 2011). Original indexer listed Bob McLeod as inker.
story concluded from G.I. Joe: A Real American Hero (Marvel, 1982 series) #61 for Outback's story. the other Joes' story continues in #62. no letters page this issue due to Marvel's full-page in-house ad for Punisher taking its place.