I think the first line sounds pretty great now.
The second line is a bit rough, but more for the words rather than the execution.
“We laid our weapons down.”
“All of you?”
“Yes, like you did! I don’t even know how it happened.”
Or if that doesn’t work, I think just deleting the second line and keeping the lines about how Finn started something and the troopers were following his example manages to get the point across.