Xcom: Enemy Within officially revealed

Firaxis and 2K Games have announced Xcom: Enemy Within at this year's Gamescom. While there were some who speculated that it might be a new game in the series, it turns out that it's an expansion pack for 2012's Xcom: Enemy Unknown.

The expansion, which is due out on November 12 (in North America at least), is set to include new abilities, upgrades and weapons, alongside new maps and additional multiplayer content.

Here's a rundown of what players can expect:

New Soldier Abilities: Research a new alien technology to advance the capabilities of your operatives:

Gene Mods: Construct the Genetics Lab to physically enhance your operatives' abilities including augmentations to the chest, brain, eyes, skin, and legs.

MECs: Build the Cybernetics Lab to enable the construction of the new Mechanized Exoskeletal Cybersuit, or MEC. The new MEC Trooper class has specialized abilities and each suit can be upgraded with new weapons including the flamethrower and grenade launcher.

New Weapons and Equipment: Give your operatives an extra tactical edge with new projects from your engineering team and the Foundry.

New Enemy Threats: Adopt new tactics to counter the threats from two new alien classes including the Mechtoid.

New Strategic Resource:  A valuable new alien resource, known as MELD, has been released onto the landscape providing access to new research and upgrades.

New Tactical Challenges and Maps: New tactical challenges are introduced across an additional 47 maps.

New Multiplayer maps, units, and abilities: Create your custom squad from a wider array of options and dominate your opponent in intense, one-on-one, turn-based matches.