One thing to note if you are using a stand alone server PC is that blitz had a problem with running on PCs that have either no sound card or no mouse connected. I cannot seem to find the bug report that was placed for this about a year ago (?) but I know it hindered one user from deploying a network game due to the requirement (not on the box mind you) that blitz requires a mouse/keyboard and/or soundcard or else it throws an error. That was a while ago though and may have been fixed.