So I am a relatively newer player, and maybe missing some things, but I can tell you that the Campaign missions are so bad, that I want to quit already. Since I cannot seem to add Feedback in that section, I wanted to add it here. 

I get the grindy progression but many of these missions are already complete, yet I do not get credit. Others are immediately credited as soon as they appear because I have already completed them. Still worse are the ones I do again, and still do not get credit. For example, Win a chest piece with ATK (%) as the primary stat from stage 5 of the sewers of Arnoc. 

Now I already have tons of these, but ok, I will go there and do it again. after wasting energy 4 times, I get one to drop. But I do not get credit. I do it again, and another one drops...with ATK % as the primary stat. Still no credit. 

This has happened to me many times and I have spent countless amounts of Energy and Silver. If this is intentional, its a horrible way to treat players. If it's accidental/bug, it should have been fixed a long time ago. At this point, I have very little interest in continuing to progress. Because of that, I lose interest in the game overall. Sharing my thoughts for developers so you can make that process more enticing for new players, not agonizing.