The first-person shooter war is starting to heat up between fans of Battlefield 3 and Call of Duty: Modern Warfare 3.  The latest Battlefield 3 trailer features a 64-player vehicle warfare map called Caspian Border where, for the first time, players can fly and shoot down jets!  It’s going to be interesting watching these two titles go head to head this fall.  Who do you think will be the top gun?