Those who are sensitive to any small, possible spoiler about Mass Effect 3 may want to skip this one. Details from a Spanish game magazine have been translated on the Bioware forums. Considering the source (from magazine to Google translator to a post on a forum), you may want to consider all of the new info as a rumor for now.
The full list of details from the magazine is provided below, cleaned up a bit courtesy of Xbox360Achievements.org:New Cerberus' troops include mechas, assault units and ninja-style shock troops.
Reapers come in different sizes, ranging from the smaller 500-600 metre ships to the 2km long Herald. That's big.
New skills for Shepard: apparently he or she will be able to roll, jump and find cover a bit like Max Payne.
There will be SWAT moves enabling Shepard to turn and strike the enemy with a greater variety of melee attacks. It specifically mentions "a new class: Heavy Melee" who will take advantage of these capabilities of combat.
More new skills: The Engineer class can build turrets.
Customisable Weapons, guns, sights and so on. Each category will have five variants.
There will be more items to "loot."
Space Battles are a possibility, but they're unconfirmed.
Environments will be larger in scale with people going about their business, ships fighting in the distance and architecture rendered in greater detail. New lighting techniques have been implemented improving the atmosphere and the number of dynamic elements.
New locations to visit will include New York, London, a moon of either a Quarian or Krogan world, a Salarian world and Mars, among others. Each environment took about 6 months to create, apparently.
You can inflict dynamic damage upon enemies. The Cerberus mechas, for example, will require hitting a weak point on their glass cockpit to disable them. You'll also be able to cut off the arms, break the head or break various pieces of armour on other enemies.
Combat is supposedly more dynamic, forcing more frequent movement. The game speed is apparently up by 10-15%.
Exploration won't include driving vehicles like the Mako or Hammerhead. This doesn't necessarily rule out vehicles completely, but there's no plans or details on vehicles at the moment. There is also a new scanning system, which presumably means that mineral mining could be back again. Yipee!
It was tempting to call this story “Shepard Goes to New York,” but for the sake of spoiler-sensitive fans, I skipped the dramatic headline. Still, this info is a lot to mull over. Once again, Mass Effect will be getting a ton of improvements.
If Mass Effect 3 is as big of a step up as Mass Effect 2 was, Bioware will probably rake in the year-end awards all over again. Which of the new details has you most excited? I'm eager to see a Salarian world, myself.