The first major DLC drop for Mass Effect 3 not related to the game's ridiculously overblown ending controversy is upon us, and to tighten anticipation of what has historically been one of BioWare's post-release strengths, they've today given us a new trailer showcasing the action you'll be engaging in.

It all looks decidedly epic, with an all-new location, new enemies (as well as familiar ones) and even some form of underwater sequence that had the hair on the back of my neck on-end. How it all plays out will remain to be seen, but as mentioned above, as far as single-player narrative content goes, they've not gone wrong in the DLC department yet. The new content will be available from tomorrow on all three platforms.

Watch the trailer embedded below, or click here for a direct link.