I'd love for the map to be of Christmas Eve, at night! Nothing more magical than Christma Eve
I also think it would be real fun to do non-shooting things. Something different from the typical battleground. You know, peace and goodwill, snow gently falling, have some campfires going. Christmassy stuff!
There could be some activities to keep people around:
-Jeep races
-Bicycles, Tractors, civilian cars
-Give people flare guns (Ooooh! Aaahhhh!)
-Scout plane stunts
-Some record players playing "Silent night" (in German of course).
-Sturmboots if it's by the river.
Any other cool non-lethal ideas?