Dirtside II rules question

Hello.	This is to all the Dirtside II players out there.  In the rules
manual it says that a GMS/H takes up 4 capacity points.  But what is the
firing arc for this weapon.  Also, does the 4 points get multiplied by 3
for turret-mount, and by 2 for fixed mount?  Either way, this seems too
"cheap" for a powerful weapon like this.

						Chen-song