I love how the weapons get dirty when you are laying on the ground or on prone camo but it seems to be very sensitive at times. I have been just running through the woods never crouching or getting the weapon close to the ground and its completely covered in mud. I think it needs to be tweaked to a degree, make it a little harder for it to get dirty. Or to make it simpler, have to rate of your weapon getting dirty the same as your player.