"Well, You're the boss." Jon shrugged.
He was used to going into formation. Maybe it was a bad habit from his knight days... Regardless, being able to change the formation at a moment's notice would be useful, probably. The paladin inspected a hole in the tower and asked for rope, which Jon actually had. Rope was useful for a variety of things, and he was glad he had some.

"I have some good rope here." He said, taking it out of his pack.
He looked around for a minute and found a stable-looking rock in the ground. He tied the rope to it and unravelled it to its full length.
"Right, any volunteers? Otherwise, I'll go in first." He said to the group.