The on-sale date is the publication date reported in the U. S. Copyright Office filing.
An earlier indexer provided an on-sale date of May 11. No citation was given, although another indexer notes that it matches a listing in the fanzine The Comics Reader.
Character(s):
Captain America [Steve Rogers]; Falcon [Sam Wilson]; S.H.I.E.L.D.; Malcolm Taurey (villain, called "William"); General Heshin (villain); the Elite (villains); Royal Forces of America (villains)
Synopsis:
While Captain America takes out the Elite and William Taurey at Taurey Estate, the Falcon destroys the "Big Daddy" Madbomb located in Philadelphia.