[Solved] Unifi UAP-AC-PRO Outdoor Access Point - Flash OpenWRT Firmware

I installed OpenWRT on two Unifi UAP-AC-Pro Access Points and just wanted to share my notes in case it helps anyone, or if I need to search for these instructions in the future:

( I can't seem to figure out how to embed BASH or a RAW code block so I've attached it here: )

RAW: http://0x0.st/8ceo.txt