Many of todays best pack builders like Kifaru, Mystery Ranch, and Eberlestock also compete for the military equipment contracts; American military and foreign armed forces. When you look online at their products they are divided into hunting packs and tactical/military use backpacks (although Mystery ranch also makes packs for wildlands firefighters, EMT, rescue folks as well. Most the the hunting packs have a twin in the tactical line that is a beefed up version with more Molle attachment points, heavier material, etc.
My point is that we as hunters benefit from all of the testing and research that goes into the military/tactical pack development. Most of the ultralight manufactures like Kuiu and Sitka
don't delve into the tactical world but companies like Kifaru do both ultralight line and tactical line very well. As a modern hunter there is a pack for almost any situation, and having one that is modular enough to be custom setup for the situation is a huge plus.