The shooting range is actually pretty easy if you use the TMP. Just get used to firing single shots or very small bursts and you'll do fine. The rest is all about memorizing the pattern of the targets.
I second what Gangster said. Just work on your accuracy and take your time the first few tries and make sure you hit the Salazar target in the background every time you hit five targets in a row. You keep that up and you'll be able to rack up about 2,000
points on the targets alone.
I'm in. I love Resident Evil. Krauser gave me a lot of trouble (until I began knifing him, of all things), and the final boss took me a few attempts, but it felt good. I also unlocked the hand cannon by 5 starring every Merc level with every character. That
was a challenge.