So, assuming you use the rope from the climbing sets to pull out Fractal and Sam and (with common effort) Doberman do you move further, or do you retreat, it's still not too late for you to get out with your lives.
Sam has given his word, but considering his condition he would advise to move with caution. the other team had fire-power, automatics and magic and still they are missing so we should assume we are against something big, in tactic-wise, of course, only with lips agreement sending a watcher ahead to search the tunnels for life signs, and if there are no in the vicinity we move, if the tunnel ends with no team in there we can take a rest and then finish moving one or two more hours and we are ready to move out, at least Sam would be.
Sam would not really throw this mission or suggest to do so even as he knows that he is the weakest link at the moment, He has too much pride to do so.
OK, will have make a shorter version if we are having a IC discussion about retreating, but for now i see no one even thinking about it.