One of my favorite PS games...
The controls are a little awkward, and therefore adds to the challenge but didnt make the game at all any less fun. Aiming can be a pain, causing you to miss at the slightest mishap. Long range shots are extremley hard, but not impossible. It has somewhat of an autolock-on system. The missions were pretty long and indept, with a new scenario every mission.
The boot camp is fun because you get to try out every weapon and vehicle. You also have infinite health. None of the enemies shoot back at first, but at the end of boot camp, you have a few turrets to deal with. The rest of the mission is filled with cardboard targets, that disapear with a cloud of smoke when shot.
Overall, I really enjoy this game. It's a game that if you have a little bit a patience, then you can play. There's a small learning curve, due to the aiming and variety of techniques available. If you into classic gaming, i recomend it.