help with movie map

[NITROGHOST]

i need some help with a map for a movie its turf with a flood infection. i put fog in but when i try to make the fog thicker and harder to see in it stays the same . i used a fog editer but the only thing that works right is fog color change. and one more thing my super weapons are working including a hand held chaingun turret gun but when i try the h_turret it floats above the head and the gpmg modle of the gun puts it on its side . ugly how can i fit the gun peice in his hands properly