This trailer is an interactive look at XCOM: Enemy Unknown allowing the chance to take command of a squad and see how your command decisions impact the outcome of a battle in the upcoming reimagining of the X-COM series. Word is: "This interactive demo illustrates the important choices you will make in XCOM: Enemy Unknown. In the actual game, you will control your XCOM operatives directly."
I'm really interested in this game but I'll hang fire and get some opinions and watch a gameplay video or two. I think like Civ 5 the streamlining will be a bit polarising and it might take a bit of a leap to embrace the new changes. Things like abilities instead of inventory are quite offputting so I'll wait and see.
What I would say is that the video that I watched a while back made it look like the 2 player deathmatch was interesting. Select some units and abilities from your faction then fight it out over a single encounter map. The action and tactics looked good at first glance.