When i read the title, I thought you meant "Sniper Duel", and incidentally, me and a freind of mine are about to finish testing just such a mission.
Set in southern Everon (in that valley, you know the one) north of Durras, at night. I used the Wargames Leage modification units. 2 player (1v1) multiplayer duel. You each start in a forest on either side of the valley. First one to make the kill wins.
You aren't allowed to leave the Area of Operations (circular trigger, radius 500, 196250 square meters to play in!) That way you are restricted to a small area, rather than having the whole island to get annoyed at. When I made the first build of the mission, I thought it would be two small. But then me and my freind were stalking each other for an hour. I decided it wasn't.
We're not quite ready to post the mission for beta testing. We are just ironing out some balancing issues.
Not to take the focus of Some Guy's mission idea (which I like, by the way) but would anyone be interested in that sort of mission?