In the end, Finn could only listen to his friend. He didn't know how to fight, and he didn't know how to use a weapon either. Standing beside Clare as the soldier fought the zombies would only be a burden, and that was why he chose to listen by returning to the aircraft with Luca and Fred.
Once the aircraft door closed, he could only watch from inside the aircraft as Clare once again went to the aircraft's luggage compartment to get something. It wasn't a portable lamp that was taken this time, but a long iron stick that the soldier pulled out.
He had heard from Clare that the soldiers could no longer kill the zombies by shooting them in the head, and he immediately understood why the brunette soldier didn't pull out a gun in this situation. He could understand that the soldier planned to fight the zombies head-on, but a weapon was still necessary since the zombies outnumbered them.
