Encounter, affair, battle in Charny's Questions, part 2

Looking again at the questions, I find more that are relevant to the problem I discussed in this earlier post:

16. Charny asks:

Two captains are in the field to fight and there is a great number of men at arms on either side. And so one of the captains and his people are defeated. And the other captain who has overcome him has killed his people, taken a great number of the defeated and gained horses and plenty of other goods. And when the evening comes none consider this to be a rencontre, besoigne or bataille . How can this be and what should it be called?

28. Charny asks:

There is a battle (bataille) between two captains in which one party is defeated and many of the party are dead, concerning whom some say that some of those who are dead are not dead but defeated; and many other say of those who are dead that they are dead and defeated. How can this be?

29. Charny asks:

There is a battle as above in which there are many captured, concerning whom some say that although they are captured, they do not regard them as defeated; and there are many others who consider them to be captured and defeated. How can this be?

30. Charny asks:

There is a battle as above in which many men at arms of the defeated party depart and go away. Some consider that these have gone on their honor without being defeated; and many others consider that those who have gone are defeated. How can this be?

I am sure you will all find this clears things up immensely!