I made a mod in lock-on 1.12a for a F-18 with a tailhook and folding wings, but before I release it I'd like to ask a few questions from you guys. I understand a lot more of what you guys did in the F-16 mod now, after doing my own, for example noticed that the burners don't match up well

. So I'd like to know if you guys can give me some strait answers to some questions:
How do I take off the long flaming burner and just keep the reddish color in the engines?
How do I change the country from Russia to United States? (I modded the F-18 over the su-33)
Answers are very appreciated.