[Major?] fires 4 rounds into the trees in 1 second intervals for effect while stepping backwards and then sideways to head back.
Specific Action: When Uhura hears Majors gun shots she gets her gun out, cocks it ready and then starts moving backwards.
Uhura looks for another way or path to keep going forward but if there is none she will head back to where they met the hippies and then back down the mountain.
Nathan waits for the group to rejoin ranks, then will go back to where they found the stoned people. All the way back, he will search for alternative paths through the mountain.