Call of Duty: Ghosts players on Playstation 4, Playstation 3 and Windows PC will be able to get their hands on Invasion - the game's third DLC Pack - on July 3. Invasion offers players four new multiplayer maps each with a unique field order, plus "Awakening," the third chapter in the game's four-part episodic Extinction storyline. The DLC is already available on Xbox platforms, which as ever hold a timed exclusivity deal between Microsoft and Activision.