Maybe i got a defective game. Aside from the random freezing, when I was doing the trip to Mexico, I tried taking cover behind one of the wooden sides and John flew 20 ft in the air for no reason at all. We werent near the grenade thrower parts so..
And then sometimes when Im riding the game goes into what i like to call LSD mode. It lags to where you can move but its like a picture moving. Just freeze frame shots of movement and the horse is going ape shit and the ground loses textures and what not. You can look around but when you do that a black haze follows every movement. It sucks sometimes. I had the assault on the fort, went to mexico, was in the middle of my first mission there and it happened. Had to redo all of that.