Avatar Items, Sweepstakes, Early Demo Access
Microsoft's new Mass Effect 3: Mission Command Facebook App will reward Xbox 360 owners with a modest selection of prizes if they take part in 11 online "missions." While participating won't unlock any in-game bonuses (you'll need to download EA's upcoming handheld tie-in for that), you'll be able to glean an avatar prop once the app reaches a certain player threshold, an avatar T-shirt by downloading the demo and the chance to automatically enter some sweepstakes. Competition prizes include early demo access for submitting your best chat-up line/rejection bombshell next week, the Collector's Edition for recording your best character impressions and even a limited edition Xbox 360 console bundle. Not exactly the heroic, galaxy-shattering objectives we were hoping for, mind.
Of course, since this is basically just a competition/publicity stunt disguised as a metagame, victory is absolutely not assured. Still, it might be worth trying out Mission Command just for the avatar items. Beats spending money on them.