I love this concept, but some things don't make sense.
I think we'll start with all the things I enjoyed about this game. First off, the fantastical setting of past Turok games has been replaced with a more realistic and, thanks to movies like Alien, a more familiar space marine setting. As Joseph Turok, you are being sent to a remote planet to bring in your former mentor. In classic fashion, things go to hell. Your ship is shot down and you make it out of the wreckage, weaponless. Apart from a better story line, the game features pretty good dino AI, and borrows a health system seen in games like CoD4. Working with squad mates on missions is a blast too.
As it stands, this game has all the requirements to be good, maybe great, but now we hit some bad road. First off, Turok ditches all of its fantastic weapons in favor of more realistic arms. This is in keeping with the change of mood, but I still think the development team could have worked in something more creative/destructive than the regular pistol, SMG, shotgun, sniper rifle fair I'm used to. Additionally, all of these weapons seem to pale in comparison next to a knife. A knife! Turok may be a bad a**, but when a sharpened piece of metal is more potent against a tiger/raptor, than a freakin' shotgun, well, you got me. Apart from this, check points seem to be spaced awkwardly, or too far apart for my comfort. So far, I've only hit a few snags, but I don't believe this is necessarily the fault of the difficulty, but more of a balance issue. The rest of my complaints with this game are small.
All in all, if you'r a fan of FPS's, then Turok for the 360 or PS3 is a great game to buy. The atmosphere in this game is definitely a strong selling point. Apart from the balance issue, using the knife to kill attacking dinos or even killing unaware patrols (there are human enemies in the game also, seperate from your group) is a complete blast. Turok is a pick up and play fun fest. You don't need to know much beyond shooting whatever is stupid enough to move.