GTA 5 Walkthrough Part 28 - HEIST: The Merryweather Heist (Offshore)

** ADULT CONTENT and POSSIBLE SPOILERS ahead!** IGN's walkthrough of the second big heist in Grand Theft Auto V, The Merryweather Heist. This video showcases the 'Offshore' option, where Trevor and Michael steal a cargo helicopter and use it to airlift a submarine to the site of Merryweather's second cache of experimental weapons.