Sierra Entertainment today announced that World in Conflict, the upcoming action-strategy game will be available for the Xbox 360 this fall. The game is being developed for Xbox 360 by Sierra's own Swordfish Studios, in conjunction with Massive Entertainment, also a Sierra-owned studio, to optimize gameplay for the Xbox 360 controller and implement a new heads-up-display (HUD) that is more functional and appealing for console gamers. More details when we have them.