What am I missing?

I can only do the random join thing? I can't pick which active games that have slots to join? I can't start my own public game so I can be sure to get into a map that isn't below my level?

This is especially annoying because the game insisted on putting my level 12 into a level 3 game. This is completely unacceptable and I am immensely surprised there isn't an uproar over this already.

@Hecate quote:

I can only do the random join thing? I can't pick which active games that have slots to join? I can't start my own public game so I can be sure to get into a map that isn't below my level?

This is especially annoying because the game insisted on putting my level 12 into a level 3 game. This is completely unacceptable and I am immensely surprised there isn't an uproar over this already.

Do you have a level 1-3 in your hero deck?

No. That isn't even possible. If you try it when you go to join a game it says "you are joining a (insert level range here) and some heroes in your deck are outside of it, remove them or cancel."

I've tried some more and it appears the new Campaign option just puts you into the latest available public game regardless of level. They really need to bring back the matchmaking from DD1 it is vastly superior to this.