Open Question: camping games that involve walkie talkies?

hello 3 friends (teens) and i am going camping and i would like to know some active games that involve 2 walkie talkies that we can play around the camp site. I know there's one called vampires and zombies but i have forgotten the rules and objective to it. if anyone has any suggestions i would love to hear them but they MUST involve 2 walkie talkies!!
Thank you

Source:
http://answers.yahoo.com/question/index?qid=20110925163720AAQ1S5h

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