Amos takes back what he said about survival tactics. Maybe Josh is trusting that Amos won't lead him astray, but that casual pace screams more 'oblivious to my imminent death' than it does 'trust you haven't screwed up.' He rolls his eyes but follows. If Josh wants to take the lead, by all means, Amos will let him.

Always nice to have someone go first and clear the spiderwebs...or the ambushes.

Plus having someone to follow makes it easier to walk and concentrate on listening.

"Go straight, if we can."