I like this quote. I can relate.
Congrats on the first elk hunt!! Can be hard to suppress the nerves for sure! And a camera, should be exciting!
I have shot in many pressured situations including instructing a class, competition, and trophy hunting. Often, with camera rolling.
Couple of things help. The biggest factor for me is confidence. I am practiced and familiar with my gear. I Know I am a skilled shooter. This removes most of the anxiety. When it's time to shoot, my focus is on the task at hand. The camera and "background noise" are simply gone. It's just business as usuall.
Feeling like you are among friends is very helpful. Shake hands, visit a little, find out a little personal information. Discuss the cameramans needs so you understand how to work together and communicate effectively when the pressure is on. You are a group of friends working together to share the hunting experience. The camera is just something "Bob" brought along.
Be yourself and don't stress over making mistakes. Hunting is real. Mistakes add to the story. Your first time excitement add to the tape. Pressure gets to all of us sometimes. That's okay too!
You might ask the guys to do a dry run or two and have 'em film you hunt a couple rocks to work through the jitters.
Good luck, have fun! Where ya headed?