actually that's a light machine gun...
Here is an example of a heavy machine gun...or 2...
http://en.wikipedia.org/wiki/M2_machine_gunhttp://en.wikipedia.org/wiki/Mk_19_grenade_launcherThe biggest part of what it takes to be called a heavy machine gun is it requiers a crew and can only be fired from platforms.
Any machine gun which can be held, loaded and fired accurately by a single person is not a heavy machine gun.
The M60 had a crew, but was still considered a light machine gun. It's new replacement...I think the M240E is considered light as well. The M249 is a damn good automatic rifle when maintained properly...
But, back on topic...I just wanted to point that out.
I have had less problems with 2000 pro, it's speed and reliablity than any other distro except maybe 3.1