There are two kinds of story mission icons in Destiny:
• Large icon- Signifies a main story mission. These are an obligation to play in order to progress through Destiny and its storyline.
• Small icon- Signifies a side mission. Not part of the main story and they are optional to play.
In The Dark Below and House of Wolves expansions, the story mission icons are not used correctly. Some of the story missions have the side mission icon when they shouldn't. There are no side missions in the expansions because:
1. The side missions are obligated, not optional as they should be.
2. The side missions are part of the main story, thus proving that they are main story missions with the wrong icon.
It would be nice if Bungie can fix this mess of icons to avoid confusion in the storyline of the expansions. I know it's a minor request, but a small correction can go a long way.
[b]Bump if you agree[/b]