go up the moutain path thing for cover. then just tap the lean button so you can get an aim on him( you know, like get and keep an aim so taht when you lean you crossair[reticule] is right on him) do that with the sniper and just fire while quickly leaning, like you have to be real fast kill the other people with either the bow or the rifle from teh same spot. i tried to kill the other guys on the train with the dynamite bow to see if it would kill multiple enimies.
so i hope that helpled...
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