The official PlayStation Magazine has published 15 minutes of Killzone Shadow Fall gameplay footage captured directly from the game.
What's interesting about this particular video is that it showcases four different ways to play the game—variety made possible by the map design, destructible environments, and array of weapons available to the player.
The video goes on to show how the player makes his way through the map without using doors, by simply tearing through walls with his high-caliber machine gun and making short work of the unwary Helghast within the map.
If you're into first person shooters as much as I am, it's really quite riveting to see a game that allows players to proceed through the map as they choose instead of being funneled through it like some kind of rat in a maze.