Well my whole achievement for the game has been reached. I wanted to rank up high enough to get the Barrett M468. Ever since I saw it on The Discovery channels Future weapons and heard it was gonna be in the game I was psyched!
Theres nothing really special about it compared to some of the other assault rifles it just looks mean.
I have noticed that there seems to be a difficulty jump as you move on through the game. Unlike the 1st Vegas. Maybe I'm just imagining it. But I just started the Rec center mission and the guys I couldn't get head shots on I was saying to myself "Damn that boys got alot of body armor on.
The Enemy AI is definitely smarter and I like how they but enemy snipers where enemy snipers should be. I also like how when I get killed it says from what weapon I was killed. That way I can try and plan my next attack a little more carefully.