1000 Unsullied vs 5000 Wights
1000 Unsullied soldiers (commanded by Grey Worm), with their standard equipment, face off against 5000 wights (standard wights, no actual White Walkers or wight giants etc).
The fight takes place in an open field, starting distance of 50 yards, and will continue until the entirety of one of the armies is killed.
Which army wins and why?