Do the A-F,S grades mean anything? Just trying to figure out if it’s worth holding out for better grades or if it doesn’t matter.
Yep.
On your first run through, grade doesn’t really matter. It matters more in PvP - you will do just fine without a high grade arkadion when it comes to single player.
E is the lowest grade. S is the highest grade. It comes from S, A, B, C, D, and then E. I don’t remember there being an F.
What it affects is the bonus action chance. I forget what % a grade E ark would have, but it is pretty low. On the other hand, I believe an S grade ark has a 20% chance of bonus action, unless they nerfed that.
Sorry for the outdated information, but the basics are still there. Higher grade, higher % of bonus actions.