Alright that answers some of my question with the WristNuke but it seems like the timer is set for 1 min because as soon as they start the count down one symbol already disappeared.
But what about getting away from the explosion, because on the movie (AvP)they got out of there real fast, if you remeber there was a big open area they had to cross from the tunnel to the temple.
Look around each corner before you move because the chances are, you are not gonna make it.