Continuation of a Classic
Socom 3 puts in a hugely needed ability to drive vehicles. Land, Sea, Air, whatever you want my friend. There is nothing better than shootin up an enemy a 60 mph. Also added was the ability to swim which gives S3 a more realistic "SEAL Feel." Also added was the ability to fully customize your weapon, with tricked out scopes, laser, grenaded launchers, and silencers.
Socom 3 also had a variety of problems, becuase of its late arrival, near the next gen it was overlooked and perhaps rushed. Graphics wise it was seriosly disappointing, and the enemy AI is so dumb that even the hardest difficulty can be extremely easy.