These were out of uniform fighters trying to pass as non-combatants. They fall under the heading of spys and sabotures and can be summarily shot at will...
What an incredible take on this. The weapons, especially the discharged weapon, prove your point.
Does anyone know the right/responsibility of a lone squad in battle that overcomes a spy/saboteur? Under Geneva/Hague they CAN be executed. There's no doubt about that, but is there anything about the level of unit in combat that can make that determination?