M44 Zero VP Objectives?

[tbridges]

I was never aware that a enemy arrival locations could share a "friendly" exit hex location.

All I remember reading or being told was that if you had friendly troops located anywhere close to a enemy arrival location they would be wiped off the map and you would loose them for the rest of the scenario, when those enemy troops arrived.

I'm playing DF'85. There are two "0" objective hexes at the northern map edge of the Danish peninsula. NATO reinforcements are scheduled to arrive through those hexes. Or at least I have been presuming those are exit hexes. What else would "0" objective hexes be for?