-Place some groups of Independents & some groups of Opfor.
-Place the show / hide module.
-Set it to Hide Units / Objects In Synchronized Triggers.
-Place a trigger that covers the pre-placed groups. (IE;300x300)
-Set the trigger to Blufor Not Present.
-Synchronize the trigger with the Show / Hide Module.
-Preview & see that when Blufor isn't present, it doesn't hide the units / groups.
NOTE: It will hide the units when the condition is, for example: "Anyone Present".