it's a pretty standard shooter that plays and looks fine.
Gameplay: This game is fun. You have a bunch of weapons, including pistols, rocket launchers, bows, etc that you can use to kill these dinousaur warrior things. The guns and everything are cool looking, and the sounds are cool. There are a few stealth missions in the game, but the missions are mostly set in huge wooded areas (or sometimes chambers and other building) and require you to kill evryone, and sometimes rescue people. There are also a few missions where you ride on the back of a pterodactyl and shoot other pterodactyls. yeah, its fun. the game is pretty long, and its pretty fun while it lasts.
Graphics: the graphics aren't too good, but they're ok. The little movie clips aren't good looking..in fact, they're kind of bad. But the gameplay graphics are pretty sharp, and good looking. The enviroments are pretty detailed, and the enemies are cool looking too. It looks really cool when you blow their heads off :)
Sound: the music is kind of cool, but it gets old after a while. It fits the action well though. The gun sounds, enemy roars/ cries, explosions, forest sounds all sound very good. The music is like flute, orchestra like. It fits. there are no sound bugs or anything, so sound it good.
All in all, this game is pretty fun. The missions vary from action, to stealth, to flying, and its al cool. It's pretty hard, but that didn't stop me from getting to the end. If it gets to hard, use cheats :D