EA has a habit of rewarding gamers for playing more than one of the publisher's titles. This time, it's another Dead Space and BioWare crossover, which grants an N7 themed suit in the upcoming Dead Space 3.
How do you achieve this? First, you'll have to have a save file from playing Mass Effect 3, whether on Xbox 360, PC, or PS3. Then, you need to buy and play through all of Dead Space 3 (the campaign, probably). At that point, the suit (as pictured above) should be unlocked; hopefully that's all you need to get both.
Last year, EA used Mass Effect 3 and Kingdoms of Amalur to promote each other, awarding players for trying both demos with weapons and armor. Way back in 2011, the publisher inserted a Dead Space 2 themed armor set in Dragon Age II, which players could acquire by pre-ordering the former. Well before that, players could get an awkward looking Blood Dragon armor in both Dragon Age: Origin and Mass Effect 2.