Assassin's Creed 4: Black Flag director Ashraf Ismail offers developer commentary over a video that expands upon the open-world gameplay shown in a video released earlier this month.
Perhaps highlighting the free-roaming open-world nature of Black Flag, the events in this video occur in a different order than in the earlier release. Edward Kenway receives an assassination contract from a pigeon coop to eliminate a pair of Templar brothers, and does away with one at the local fisherman's bar. The other flees, and Edward gives chase in his ship Jackdaw, which Ismail refers to as the second main character in the game.
After highlighting some gameplay elements including the naval combat and ability to plunder ships for their cargo (in this case rum, which is sold to upgrade the Jackdaw), Edward finds an uncharted small island, which the developers call "playas." On the island is the corpse of a sailor with a treasure map leading Edward and the Jackdaw to a Mayan ruin, as shown in the earlier video.
As an uncut gameplay video, we see here Edward's full ascent of the Mayan temple to find the treasure, including the use of the new Berserk Darts which cause enemies poisoned by them to attack anything in sight. Edward frees pirates held prisoner by the British and welcomes them into his crew, before finding the treasure that will allow him to upgrade the Jackdaw for use in combat.
Assassin's Creed 4: Black Flag will launch on Wii U, Xbox 360 and PlayStation 3 this October, with an Xbox One, PlayStation 4 and Windows PC launch to follow at an as-yet-unannounced date.