The newest iteration of the series is the best one yet, offering an intelligent and flexible interface, a highly replayable campaign, and multiplayer modes that include cooperative play.As with the real-life SWAT teams, your job as an element commander in SWAT 4 is to take your five-man team into dangerous situations and defuse them. These situations range from a botched jewelry heist to high-risk arrest warrants to a raid on an illegal casino. In almost every mission, there are innocent civilians mixed in with the bad guys. Those of you who are Rainbow Six and Counter-Strike veterans will need to cool it on your itchy trigger fingers. Even when you do run into armed criminals, you don’t have carte blanche to shoot them immediately. You have to follow the same strict rules of engagement as a real police officer and do whatever you can to subdue and arrest suspects without lethal force. Your guns are meant to be a last resort and should only be used if an armed suspect is an immediate threat to your team or civilians. This is the primary detail that separates the SWAT games from the military-style action games. The rules of engagement add a good deal of difficulty to the game, and SWAT 4 pulls this off well. At the end of each mission you’re graded on how well you did, and more points are awarded for arresting as opposed to killing suspects. You are assessed big point penalties for improper use of force, and for the most part, these penalties are levied fairly and intuitively.