This issue is a variant of G.I. Joe: A Real American Hero (IDW, 2010 series) #255 [Cover A - John Royle Gatefold]. There exist further variants.
As noted on the cover, this is the 100th issue of this series (not counting the #155 1/2 issue).
Wraparound gatefold cover.
Embellishes upon the story of Snake Eyes' disfigurement from G.I. Joe, A Real American Hero (Marvel, 1982 series) #27.