Complex sentence: Three hours earlier, Tony Stark had recorded a journal message about how he will have to defend the Dataspine, mentioning the Roxxon Energy Corporation, and how they tried to duplicate the Iron Man armour without success.
Split into simpler sentences: Three hours earlier, Tony Stark records a journal message about how he will have to defend the Dataspine. He mentions the Roxxon Energy Corporation, and how they tried to duplicate the Iron Man armour without success.