This game oozes cool and is greatly improved over the previous 3D installments, but it's really starting to piss me off.
First, the A.I is just retarded. For example, I was in South America and I capped what had to be at least 60 PMC soldiers in their heads with an M4 in the space of a few minutes. The militia guys were cheering and complimenting me the whole time. Anyway, I finished off the last wave of reinforcements with a gun emplacement. After the PMC guys stopped coming, I waited a minute to see if more would come. During this time, the militia guys were just milling around next to me. The instant I let go of the gun emplacement with the triangle button, one of them said something like, "What? Who's that?", then another said, "Enemy!", and they started shooting at me. I just threw my controller down in disgust and let them kill me.
Second, during this same fight, I noticed that a lot of PMC soldiers were coming out of a hole in the ground, and I thought they had some sort of Vietcong-style tunnel network. After many spawns from this hole, I decided to just rush their position. What did I find? The guys were coming out of a hole about six feet long, four feet wide, and one foot deep.
At least fifteen fucking guys came out of this hole, and it was big enough for two people to fight in, and big enough for about four people to squeeze into, but not be able to move.
It reminded me of a clown car in a circus. Such bullshit.