When I laser designate a target and send the information, VBS3Fires does not respond

Before designating a target, you must first ensure that the gunline is waiting for a laser targeting transmission. You do this by sending the laser polar command through VBS3Fires.
If you have done this, ensure that the laser designator is turned on by clicking the left mouse button. You should see a diamond appear in the sights.
If no diamond appears on the left mouse click, it is possible that your laser designator has no batteries. Check the top left hand corner of the VBS3 screen. If it is red with a 0 in the ammunition area, you will need to obtain a battery for the designator. This can be done from the real time editor, the mission editor, or by scavenging the battery inside the VBS3 scenario.