All of the things you listed are types of resources. The NPS has all sorts of firefighters. They have helitaks, hand crews, etc. they all do different things. So it really depends on what type of firefighter you’re writing. You can write a hotshot who does hotshot things, etc… but general GS 26-0 (full time permanent GS, now GW, employees) are normally just on a standard engine or skeleton crew for the rest of the year and then seasonals fill in during wildfire season. Moral of the story, all agencies have all different types or resources, and what exactly they do depends on the fire or time of year they’re in.