E3 2013 Destiny Gameplay Demo
From Destinypedia, the Destiny wiki
The E3 2013 Destiny Gameplay Demo was the first long look at the real first person gameplay of Destiny. It featured a pair of Guardians heading through the Wall, engaging Fallen, fighting a miniboss, and participating in a fight against an assault of Fallen, including a Devil Walker, as part of a Public Event. It also revealed Ghosts and confirmed that the game would have Aim Down Sights.