Hi,

I didn't read all posts and I don't CARRY a gun (coming from Germany is not always easy).

Here's my philosophy (I share it partly with you):

Empty the clip / chamber as fast as possible, be sure to hit/kill the enemy (you have to practice for this).

Repeat this while enemy is on two legs.

Result:

You killed/wounded all.

If not and you got overpowered:

1. There are no more shots left to be directed against you.
2. Practice harder