As you all know, as it stands there is very little reward for leveling your legacy. In my opinion, the class mission experience modifier is a perfect opportunity to add value to the legacy system. A break down of how it could work: At legacy level 1, you earn Class XP at 1x the normal rate. At legacy 5, you earn Class XP at 2x the normal rate. At legacy 10, you earn Class XP at 3x the normal rate. This would continue to legacy 50, where you would earn 11/12x the normal rate. As people level their legacy it becomes evident that replaying the planetary storylines becomes increasingly tedious. Because of this, allowing people with higher legacy levels to place more of a focus on their class storylines seems like a sensible move.