I Need Help Hex Editing!!!

I've looked at all the tutorials, and I finally decided, after dc-ing for the 5th time, that I need help. I have RezInject, and RezXtract, and 010 Editor v3. I'm trying to make a superknife mod, but I don't know what I'm doing wrong. Post here if you're willing to teamview help me, and I'll PM you my info.

You have to cross mod with a fast RoF Weapon, like minigun, kriss, F2000, etc...

Hex Editing it: No Tutorial Yet

u dont need to hex edit just crossmod to weps with fast rof