Today, we got a great look at Mass Effect 3‘s multiplayer via a brand-new trailer both highlighting the mode and the races and classes you’ll be able to play.

Not only that, but BioWare’s blog provided a great post, titled “So Your Friend Is a Vanguard,” to accompany the video. It goes over the sorts of steps you’ve got to take when it comes to playing with a friend who is a little more…overzealous when it comes to the multiplayer.

But first, check out the trailer to get your first real peek at what looks like a ton of fun.

Codemasters has announced the Operation Flashpoint: Dragon Rising PC demo today. Gamers can find information on downloading the demo and how to play the first mission at www.flashpointgame.com in the “Public Affairs” section. The title is currently out on the 360, PS3 and the PC.

In additional support/celebration for the game, Codemasters will also be providing premium avatar items on Xbox Live Marketplace. The avatar items range from military themed clothing, t-shirts, baseball caps, camo suits, and Special Forces tactical clothing.

When you’re done with the demo, enter our Operation Flashpoint: Dragon Rising swag contest!