Just completed it after getting every activity to rank 7 for shader and resetting vangaurd . So thats about 5000 orbs or close to it i think.

I was thinking this too i have to play a lot more for the same gains. And that is not to mention what my guy here is saying about the quests the orb one is rediculous i am just gonna let that one naturaly progress not grinding that one 😂😂

1000 orbs. Really slow. It’d be nice if orbs generated from the two seasonal events counted toward it but no. You gonna have to run a lot of strikes or find a cheese.