@Red Eye, that is not true. If you look, the flashlight interacts with the room around it, it is not a simple ambience change. Here are some stats taken straight from the gunspec:
;GUN Model File Requirements
;GUN Settings
MUZZLECOLORR = 255
MUZZLECOLORG = 255
MUZZLECOLORB = 255
muzzleflash = 1
muzzlesize = 1
damage = 0
reloadqty = 0
firerate = 1
range = 1
No script exists - no script is called either, seeming as it is not possible to use gunscripts in stock FPSC.
Trust me, it's how it works.
[b]FPSC MIGRATION: http://forum.thegamecreators.com/?m=forum_view&t=142497&b=21