The way I assumed Destiny would work (which is a severe disappointment and one of the reasons I'm probably not buying it), is a giant open world map. Like 50,000 sq miles for each of the different planets, with PVP zones, PVE zones, exploration, dog fighting in space crafts. 50,000+ people all packed into the same world. But linear gameplay and a small 2 sq mile map is a severe disappointment to what I envisioned the game to be.