There were about eight guns in the beta of Uncharted 2. Two pistols, three assault rifles, a sniper rifle, a shotgun, and a mini gun. Since the beta the developers have been noted saying that the AK was too inaccurate and the FAL (another assault rifle, with only a burst type fire mode) was used in close combat all too often, which is not what the developers had in mind for that specific weapon. I assume they will tweak things to allow guns to be played with differently, but I do agree that the AK felt like a very ineffective weapon. It was almost as if I had a spray can instead of an accurate assault rifle. I somewhat disagree with the FAL rifle, as I always used it in a long distance manner.
The actual tactics, and gunplay of the matches were rather consistent though. Think Gears of War style cover without having run and cover mapped to the same button, or like the game killswitch if you've been a playstation fan all your life. However the animations for the cover is much more fluid and natural looking than most games I've seen, save for a game that got canceled named 'Eight Days'.
A tip while loading the game suggests "Think vertically, all maps have some place to climb to". Sure enough in each map there were about two or three places that could only be accessed by scaling a wall, or jumping across balconies. However in the two maps that were in the beta being in the high spots often meant being very vulnerable. This hopefully will be different on the other maps, but it could be that everyone just wanted the king of the hill spot. Who knows if that will change though.
