Most importantly: Always double tap.
It is a both hilarious and enlightening site, written by a former special forces operative.
All other things being equal, you want to conserve ammunition.
The bad guy usually is dead when he drops to the floor.
They are highly asymmetric.
The cost of being wrong is very high - the bad guy may roll over and shoot you in the back when you walk past him or turn around.
It’s a military equivalent to a cheap insurance policy.
You don’t need it most of the time, but you’re sure glad you have it when you do.
It is literally a matter of life and death.
Slow is smooth. Smooth is fast.
When you are operating at 95% of your max capacity, even a mild amount of volatility can you push over the edge and cause a mistake.
Let's say you have a road that's at 70% capacity, and the speed limit is 60 miles an hour.
Because of how the traffic flows, it's actually faster to slow everyone down to 45 miles an hour.
The only way they can do that is if they are operating at 80% capacity to be able to address unexpected emails.
You’ll be able to quickly solve problems (double tap) and seize opportunities.
And, make sure you remember to double-tap along the way.