Complex sentence: Tripwire works with Flash, Beach Head and Airtight to destroy a terroristic militia, but they wind up coming into conflict with Joe undercover agent Chuckles, who had infiltrated the same group.
Split into simpler sentences: Tripwire works with Flash, Beach Head and Airtight to destroy a terroristic militia. They also come into conflict with the G.I. Joe undercover agent Chuckles, who had infiltrated the same group.