[quote=5e SRD]
[b]Unconscious[/b]
An unconscious creature is incapacitated (see the condition), can’t move or speak, and is unaware of its surroundings
The creature drops whatever it’s holding and falls prone.
The creature automatically fails Strength and Dexterity saving throws.
Attack rolls against the creature have advantage.
Any attack that hits the creature is a critical hit if the attacker is within 5 feet of the creature.[/quote]

More or less every attack against them is a coup de Grace, so it comes down to us hitting each at least once. I am not sure how many hit points a kobold has, but probably not many. I am fairly certain the greatsword will work by itself, although anything less than 8 points of damage is risky. The good news is, if they attempt to flee, they should provoke an opportunity attack by standing and then moving away.

Either way, that is my intent, to have Brannor execute each lest they escape.