So, you plan to pack the meat out in addition to the camera, and camera support gear?
If so, a load-shelf system is great. The KUIU 3600/6000 is 30% off today. It has two full side pockets, a deck lid you can get to without unclipping the load straps, and full zips so you do not have to dig contents out of the very bottom by unpacking everything. Kifaru is robust and a bit heavier, but you need to be careful in the bag choice if you don't want to Toploader and have to dig your stuff out to get to stuff on the bottom..
Packed a lot of Elk out with the 3600;
it is very comfortable with most of the weight on your hips when adjusted correctly. (Mule) in the load shelves in the photo.
You can see that even with the load shelves holding quarters, you can get into side pockets or the main compartment. All 3600 bags in the photo. If I was packing in for a lot of days, I'd pop on the larger bag. The 3600 is enough for a weekend or small and light enough to use as a day pack. I usually keep a minimum of a large orange trash bag, game bags/kill kit, IFAK w water pills, headlamp, lighter, SAT, puffies and an E-bivy; with a bit of water and food, Carbon Z-poles, so I don't want anything too small.
I've had SG, EXO, KUIU and Kifaru. It's very hard to go wrong with any of them "if" you adjust them correctly, pick the correct bag for your use. Nothing is a free lunch so you pick what you want most. The lighter base weight packs are SG and KUIU with the most robust material and but heavier with the Kifaru.
Edited to add: Some packs like the Sitka Cargo Box are EXTREMELY heavy (nearly 8 pounds for only 2000 ci) for what they offer and their load shelf really isn't really going to carry what the mentioned packs will.
With a good load shelf, you need a lot of expandability that I don't think packs like the sitkas offer. On the pack on the right, you can see all the adjustments left on the pack to add another Elk quarter. It a large hind and BS& Tenders
Below is from another hunt and my son is carried an Elk hind and two shoulders!
