I have the achivement for 10,000 damage with GRA weapons. I still haven't got the one for unique GRA weapons. Is there a specific weapon I should be using for this? Figured it would of unlocked close to the other achivement but i've killed hundreds of things since then and haven't gotten it.
They need to be weapons like Paciencia or Maria. Items with unique names, not just items with GRA next to them.