I can imagine being there, from past experiences, and given the conditons I would dump fuel on the bodies and burn them just for simple expediency.
But .. our military has rules against this .. so why would the leader of the group allow them to do that ..??
We have to fight monsters .. but we don't want to turn our precious warriors into monsters too. Just because the terrorists burned our guys on the bridge in Baghdad, that doesn't make it okay for us to burn them. No matter how much we dislike them. We're there to kill and break things - not become butchers and monsters.