Old adage of if you carry a knife for self defense prepare to get stabbed. I imagine it stands true that if you carry a gun.
Im a not so fresh EMT and TCCC trained. Trauma has the simple rules of bones are straight or curved and and under the skin, blood goes round and round, air goes in and out. If anything changes, splint, cover and plug.
If any fluid is coming out of the body, always glove up.
Bandages only go so far Quck Clot is great ,TQs have the most stopping power, but can be over kill.
The rule for bandages even hemostatics is plug into the bleed, pack to the bone and wrap.
TQs have been a big and evil No! in the civilian world, and military due to the old school of thought that as soon as you apply it correctly(stopping the blood flow completely) the limb is dead. direct studies from combat hospitals have proven it takes about 4 hrs for limb death to happen.
Every medical company has their own best thing since fire medical kit. I've used and finger banged a lot of bandages and have found Tacmedsoultutions to figure out a good all in one bandage, they have created a modular bandage that has occlusive dressing( piece of plastic sheet to cover airway wounds), gauze, and a pressure cup and dressing all in one package. It can be used as once piece, or taken apart.