Hot on the heels of Electronic Arts' confirmation of the Mass Effect: Leviathan DLC, which is set to release later this summer, comes first details about the game's new missions. What's most apparent from the mission walkthrough (which comes to us by way of Kotaku) is that the missions in Leviathan will be unlike anything featured in Mass Effect 3 to date. This isn't just a special circumstance where Commander Shepard hops onto a turret; this is some new and exciting stuff.

Before the demo kicked off, players were treated to a cinematic that explained the nature of the titular Leviathan; a mysterious "being" that has the ability of killing Reapers. As the ending to Mass Effect 3 already explained to us, there are a myriad of ways of either controlling or destroying the Reapers, but apparently this Leviathan is yet another option.

Before we get into mission specifics — the mission on display was the last of three featured in the DLC — it's best to outline some key pieces of information about Leviathan first, as the mission details are very spoiler heavy. Leviathan will be about 2 hours long, about as long as Mass Effect 2's Lair of the Shadow Broker, will introduce some new weapons and others that were featured as pre-order bonuses, and the pack should be out some time after the release of the Firefight weapon pack, which releases in August.

Now, the mission. Players once again assume control of their version of Commander Shepard and must first dispatch a couple waves of Reapers aboard a pitching ship. It's standard Mass Effect 3 combat, but apparently the dynamic nature of the floating ship made for some interesting sequences a la Uncharted 3.

From there the player must complete a few random objectives — eliminating more enemies, unlocking a door — before they take control of a mech and head to the bottom of an ocean. Unfortunately the demo cut off there, but it is implied that Leviathan is lying dormant somewhere amidst that abyss.

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It's a bit disappointing to hear that Leviathan will only encompass 3 missions, but the promise of an engaging new storyline and some interesting combat scenarios is enough to carry us through. At $9.99, Leviathan will mark one of the first times players will have to consider further investing in Mass Effect 3 (the Extended Cut and many of the multiplayer DLCs were offered free of charge), a tough decision in light of the way the game's ending was received.

Will you be picking up the Leviathan DLC for Mass Effect 3? What other combat scenarios would you like to see BioWare feature in the pack?

Mass Effect 3: Leviathan should be out by summer's end on PS3, PC, and Xbox 360.

Source: Kotaku