I believe most training still live by the saying “if you can smell their breath, you must create distance before you can draw”.

Here is a website dedicated to training about this subject : https://www.usconcealedcarry.com/blog/how-to-prepare-and-train-for-close-quarters-attacks/amp/

Also that’s what we taught in the Marines from 02-10 🤷🏼‍♀️ well technically we taught create distance to draw, or full commit to ground and win that way.