Gameplay is good, but isn't the best I've played. Multiplayer is ok, but its standard shooter game multiplayer. Plus, the bigass weapons and the knife is the only good weapons. Games like Rainbow Six finds use in all kinds of weapons, but the onslaught weapons are the only good weapons in multiplayer. However, the soloplay is fun yet easy and the gore is very realistic, which makes SOF a good game.
Graphics are very nice.
The changes in places is shown clearly. From Japan to Sudan, difference is very good. The weapons look kickass, especially the heavy machine gun, aka M-79 Guardian. The people's change in clothes from change in places is accurate and realistic. SOF has some great graphics for its time.