From the build that we played, I got a much better idea of what they're aiming for with this game. While it does have a singleplayer option with 3 AI squadmates, the game is designed around playing with human teammates. Which is to say, the game is almost impossible to beat alone, and far more fun with friends. Also, you aren't always the "good guys" in Takedown. The missions are based on who is paying, so one mission has you going so far as to kill a scientist and plant evidence to frame him for a crime.
Take a look at the video above to see a few of the missions and a look at how easy it is to kill the developers in a deathmatch when you finally get your hands on a shotgun.