The Dwarf Holds adds a Dwarven faction based on Erebor, while also tweaking and adding a couple of things to the four original factions to get them up to the level of the new faction.
This video and goes in-depth with commentary and insight from the team itself, showing both cinematic sequences and gameplay elements that have been added into the new title to expand the scope and narrative of the critically-acclaimed series.
A world in chaos and a war that seems to be almost lost. Monsters have risen from the sea and the titans have ravaged the world, endangering all that live.
One of the many great announcements at Fanfest 2012 was the introduction of all new launcher models and missile effects, coming soon to an expansion near you.