I found the beginning of Chapter 11 to be a great a place as the enemies are contained by a narrow corner. Take out the initial enemies and make sure you collect the assault rifles. After taking out the commander you will come to a door with a yellow wheel lock. Open this door switch to your dual wield and go out shooting. It may take a few attempts to get it right, luckily theres a checkpoint just before opening the door.
Heres the video. This was my third attempt. My main tips are dont crouch make sure you are standing and try to aim head height.