The first DLC for Assassin's Creed 3 will be made available today for Season Pass holders. "The Hidden Secrets" pack adds three missions, previously available as pre-order exclusives. The Lost Mayan Ruins, the Ghost of War, and a Dangerous Season. Combined, the three should offer an "additional hour of gameplay."

The DLC also adds two single-player costumes, including the Captain of the Aquila uniform, and a traditional Colonial Assassin outfit. Two multiplayer characters will also be added, including the Redcoat and Sharpshooter, previously available exclusively via energy drink.

Season Pass holders will be able to download the add-on today, but everyone else will have to wait until December 11th to purchase it standalone. (Wii U players will have to wait until Nintendo's eShop is updated with DLC support.) The DLC Season Pass is currently available for $29.99 (2400 Microsoft Points) and represents a 25% savings over buying the content packs individually. The single-player "Tyranny of King Washington" campaign and various multiplayer expansions are included as part of the DLC package.