Better than people are making it out, give it a rent if you are unsure.
Now onto the game itself, it is quite a 'fun' experience, if you want to put it that way, going to different places in the Nam' from forests, to caves, the highlands, and temples. The sound is good, like the sound of animals and creatures in the forest, and the heavy breathing of 'Nate' when things go quiet, or if he just gets attacked, it really makes you feel his fear, and that he just does not want to be there, but I guess for you're brother, you would do anything. Now, the effects are great, for example the blood, during you're time in Vietnam, you will run into Soldiers (And Infected) that will jump on you, triggering a scripted scene, were you need to press buttons correctly, you then get to choose whether to beat him down, or just simply shoot him.
Now the hitting the enemy with the butt of you're gun is really satisfying.
If you want to know what happens(Not exactly a spoiler, but still) read this:
You hit him with you're gun, then you Repeatedly keep bashing him in the face, while blood continues to go all over the camera and leaves his face all beaten up, with some nice blood effects on the floor.
You will get some assistance from G.I's throughout the game too, they are not too bad at defending themselves, at a distance, they can take down enemies quite well, but they seem to have problems when they get up close and personal, they are useless at close quarters, pretty much. The enemy AI is abit stupid(Mainly the human) as they just stand there, until they get shot, then they will move to another piece of cover, but slowly, their aiming is unbelievable though, they always seem to hit you, you could be stood in a hut, and they'll still manage to get you through that little window that you didn't notice, but, you'll get over it.
The Aiming is fine, although lining up that headshot at the start of the game MIGHT take alittle longer than you would, as you progress more, the ironsights in the game are alittle bad, but they're okay overall - the weapons in the game sound meaty and powerful. But there aren't many guns in the game, there are 2 types of each gun(Pistol, Assault Rifle, Rifle, and then there is you're grenades, and you can also get a flare, which scatters the infected)
And don't listen to anyone who says this game is worse than 'Turning Point' or 'Hour of Victory' that is just taking it too far, the way I see it, the game is enjoyable, and any gamer who actually get games for the FUN, which games are all about in the first place, will find it good to play, and enjoy this gore-filled game.
Overall, the graphics are decent, the gameplay is good, aiming is just fine. There afew framerate drops now and then, but it's nothing major. If you are unsure, just rent it.
Here are the main good and bad points:
+ Creepy Atmosphere
+ Gore is great
+ Easy Achievements
+ Guns sound meaty and powerful
+ Good storyline
- Alittle on the short side
- Afew Framerate drops
- AI is alittle stupid sometimes, but aiming is good, TOO good infact. (Team mates and Enemy)
- Too Frustrating at times
- Graphics are alittle dated, but you'll get used to it
- No Multiplayer Component.