There are 2 types of Bots in this module:

Random-Bots)
Randomly generated Bots in random Level brackets and level equip. Talents Specs are also randomized. There is a chance that this will change after some time of non-useage. They will run in the open world and do stuff.

Alt-Bots) Generated Bots from an account. The can be automated but there is no random stuff if you dont set it. But they dont ran around in the open world if you dont command them to do so.

So if you want to play with random bots, you have to deal with randomness.
If you want a fix dungeon or raid group with progress in equipment etc, you need to create them on an account and (currently) load them as playerbot with your own char.