Any good channels, I came across alot of shitty and boring ones, did subscribe to a guy (night shift)that was doing paint chipping etc, that was neat on the old WWII tanks and dozers etc...way above my paid grade

Just basics of to paint and then weather mild and basic

this guy is addictive. He was a career movie model set artist.
https://www.youtube.com/results?search_query=boomer+diorama

maybe search his videos for "airbrush"
he works with an airbrush often, and talks about his techniques.

It's not "How to Airbrush 101", it's more like "Advanced Airbrushing 220", but he's very talented, and entertaining. I often listen to his videos while working on other stuff on computer -3d modeling, for example.

2nd half of this video is a good example of his style, 1st half is not his normal style video



another good one

After 40 years away from modeling , I recently took it back up. I'm experimenting with my airbrush and making some mistakes , but learning. These guys make it seem so easy though.