In last days i published a script called "Base Alarm Script". This script allows you to simulate the life and behaviour of soldiers in a base.
So are you able to let enemies run out of not usable buildings without placing them one by one on the map. They will be beamesd to the place you ordered them to be, when the alarm rings.
More information and the Download link you'll get here!
Questions about the script and about the usage you can put in here