Activision has announced that the Transformers: Revenge of the Fallen Character and Map Pack Plus is available now for Xbox 360 and PS3.

The massive content pack will include eleven playable characters, three all-new maps for online multiplayer game modes, and a brand new "Expert" difficulty setting for the single-player campaigns.

Fans of the original Transformers television series can take a trip down memory lane, as new characters include Generation One versions of Optimus Prime, Megatron, Starscream and Sunstorm, while fans of the blockbuster movies will recognise Soundwave, Sideswipe, Jazz and Jetfire. In addition, new skins are available for Bumblebee, Ratchet and Sideswipe. All characters can be used in both the single player campaign and multiplayer modes, with the exception of Jetfire, who is only available in multiplayer.

The three new multiplayer maps include Courtyard, set on the U.S. east coast, where players battle in a metropolitan setting surrounded by open skies and tall skyscrapers; Hillside which takes players to the urban backdrop of Cairo, where players will fight in the war-torn streets and alleyways of a ruined cityscape; and Sandstorm which transports players to yet another section of Cairo, populated with low buildings and wide-open regions.

Lastly comes the new Expert difficulty mode, giving the single-player campaign an additional challenge. The new DLC also includes new Xbox 360 Achievements and PlayStation 3 Trophies.

The Transformers: Revenge of the Fallen Character and Map Pack Plus is available now priced 800 MS Points on Xbox 360 and £6.29 on PS3.