While I applauded their efforts to engage MW/Battletech fans, I hate these types of social network "games". We've had concept art or fan art for BT for years. It doesn't draw any interest, to me, to get fan to "unlock" more pictures.
We've all the seen the trailer by now. It give a pretty darn good view of what their vision for the game is. If there were actual game renders instead of concept art, it might be a different story.