Sorry, I looked around and couldn’t find the answer to this. My first playthrough.
I’m in the middle of Ultimate campaign. If I switch over to Crucible and then back to campaign will the campaign be reset, i.e. will I have to start it over from the beginning and re-find all of the riftgates, etc.? Thanks.
Everything is in Main Campaign as when you “left” it 
nothing will happen
You can even go back to Normal campaign and will see that the progress is exactly as you left it. So, all 3 campaign modes “remember” independently from each other the status of the quests as you had them when last played.
Why would it? Is there any game that does this?
Awesome. Thanks.
I just wanted to be sure.