You don`t edit it at all to the song. Its all sniping and one or two lucky sticks. None of the plays were that amazing...you don`t have to put every single snipe you get into a montage.
Sure first montages are bad and mine will most likley end up bad when it comes out in a few weeks but you repeated the guardian sniping thing like 20 times jumping up and down and sniped from snipe 1. It got boring and you could at least take your time on it and take the time bar out and record more clips.