Hey great question @itsmyjob1.
The TAK Product center is switching websites as we speak.
Currently parked at www.takmaps.com and transitioning to https://tak.gov/ . TAK.gov is up and running and you can go the website but cant register yet.
Once you register there is a whole catalog of training material on there but its protected behind the site.
Outside of the website there is some publicly available training and information.
There is an ATAK youtube channel with lots of videos.
If your looking for what the tools do once you download atak on to your device it does come with the pdf manual imbedded into the application. I just uploaded it to https://tinyurl.com/takmaps
Here is a promo video that shows many of the capable features. It is pretty military driven perspective but we share so many of the same needs.
Here is a presentation I have last year at the TAK Virtual Offsite. It was to ATAK oriented people so just showing them how we are leveraging it. It does show off some capability.
Last but certainly not least from the great folks at the Colorado COE.
https://www.cofiretech.org/feature-projects/team-awareness-kit-tak/wintak-training-2
The training powerpoint i uploaded to the tinyurl shows off most of the basic tools and stuff you would use for wildfire. I have all those streaming service up in my tinyurl so you can download to the device use the import manger to bring them in. I am thinking about making a more generic ppt for folks who maybe arent connected to a server and how to browse to the data I have available and how you can get it up and running on the device. Also going to put in there how to create a datapackage outside of posting it on a takserver/teamconnect.
Also if you just scroll back through the beginning of this thread there are some posts on specific items etc. Many of those things I will incorporate into that generic ppt training slide deck.
AJ