Its pretty decent for your first montage but here are the things you could use some improvement on...
-Dont use all singles for the entire thing, meaning show more than getting 1-2 kills per clip if possible so have a decent length clip getting like 3 kills then move on etc, sorta like predator or alien.
-editing, wasn't bad but play around with after effects, will make it improve a lot
-quality was iffy, I watched it in normal but still depending on your capture card you may want to upgrade(I am NOT saying go spend $200 tho) also rendering as HD helps when you do the editing
Over all decent work and cant wait to see you improve, keep it up and it had some good shots
(you also played a same clip twice btw, the one on the dominion where you get the single near the flag capture on Karachi)