Talk:Argon Crystal/@comment-68.34.60.80-20190702035946

Just run Exterminates. Usually get 1-2, sometimes more  On Defense missions you could go half an hour with no drops. On Survivals, same. These things are more common from crates or resource nodes, and exterminate mission let you sweep levels fast looking for them.

Plus, you can't fail Exterminates, unless you suck. There will be fewer enemies than survival and so on. Easy to explore with minimal interference.