I would take my Hook over my BATAC for survival.
In many of the episodes of Bear carries some kind of 4" folder w/ black grips. I can never make out what brand it is. You can see him push the lock and unfold it when he is done with it.
I like the show it is mindless drivel, but at least it is not a stupid cops, doctors or shmarmy reality show!
SAS guys are no joke.