Ever since the announcement earlier this year that they would be bringing the game into the modern era, we've been waiting to hear something, anything, about the co-op mode. Heck, at the time of the announcement, we could only assume that it would have the same four player co-op that was a part of the original. While that did get confirmed, eventually, this "101" trailer is the first time we've actually seen any of it. So please enjoy all 30 seconds of it starting around the 4:41 mark.

The below trailer highlights a set of both old and new elements that make this a game worth checking out, from the award nominated story to the new cover system.  Missing is the 4 player online co-op element that allows you to take on swarms of the game's enemies with pals: