Not bad, a couple observations though.
The cut from the guy walking away after the shooting is an inconsistent shot and too long. If the guy walks off camera to the right, it flows much better in the next static shot if he is coming in to frame from the left. The flow is also broken with too much dead time on the gate before he enters the frame. If the point was to keep the music consistent you may need to add a transition shot.
The other thing I noticed was the scream bit at the end only plays out of one side (right speaker) whereas the rest plays out of both.
Props for using the Wilhelm scream btw.
-Lego