The whole point with this mission is to be more of a story-driven atmospheric mission. In FarCry 2 you play as a regular mercenary who is sent to a country he knows basically nothing about, other than there is a conflict and he's getting payed. He's equipped with the most basic of black market guns and equipment. If I gave the players NVGs this mission would lose all of its atmosphere, feel and loyalty to the source of inspiration (FC2), thus being just be a short, dull mission with no content.

And the VAS? That was added so that players can fool around by equipping snipers, RPGs or whatnot. It holds no other purpose, really. You can think about it as a reward for endruing the mission regardless of the small amount of combat during the it. ;)

very good, but not without NVG. Why give us the VAS only at the end of the mission ...