When I first received this game for Christmas all I did was play it. In this game you are apart of the green army, but instead of going on foot you are flying helicopters. You have a selection of pilots to pick from. It does not make a difference because they do not have any specials or anything. When you first start playing you can only pick one helicopter. Along the way you unlock the other three. The helicopters matter though because they each have different stats. Some of the levels in this game are really fun. One level for example is the level where you get a giant teddy bear, with laser vision, helping you :). In some of the levels you have other helicopters fighting along with you too. The objectives for the levels vary. Some having you bring the fight to the tan, and sometimes, blue army; some have you carry thing to different points on the map; and some protecting bases or things. Some of the levels on this game are extremely hard though, there are only like two or three. The co-op on this game is perfect. The levels all remain the same, but it is still very fun. Multi-player is also very fun have you doing different objectives like on single player campaign. Thank you for reading my review.