To begin with, allow me to present a visual situation:
The gentle reader will take note that there seem to be five individuals in the well lit-portion of the map, centering on the bright yellow light that is over the center person's right shoulder (that's her torch). It will also be noticed that to the left and to the right, there are some nasties designated 'Goblin' 1 through 10. But let's ignore them.
Below are the five characters, simplified down to the pertinent details needed for combat: