Yeah, I think I messed up. I was trying to fulfill the 5000 goal because every mission gets like 100 kills and I was out of patience. I found numbers of traitor guardsman killed and didn't think it would actually work.
The problem lies within that you normally don't get more than 2-3 drops per mission so it will be a lot of code to sift through. To be fair, I am not as remotely as skilled as some of the big shots on this site so maybe there is a better approach than mine.
Which tarot card did you choose for the advanced ones to drop?
EDIT: Nevermind, they seem to drop in story missions, however, the drop amounts are abysmal, normally 1 per mission. I tried establishing a pointer for these but I can't seem to manage.
Do you remember where or which mission it is? Also, artificer/relic material don't drop from chests, you only get electro fragments/chemicals (whatever the spelling is) and blessed alloys from the mission chests.
In game chests can drop crafting material, my theory is that the crafting material gained within a level can be modified in order to receive more when the mission is over. However, so far I haven't seen any map with more than one chest. Has anyone looked into this possibility yet?