What and where are they at? I have to kill 3 in my daily Vault Card and there not the flying bugs. I have killed a ton on Pandora.
I recall a prior topic where someone said it was the ones in the maliwan takedown (the three that appear together in the section after you kill the kracken) but you had to play on true takedown mode for the kills to count.
I did kill them earlier today on non-True MTD and it registered (as a one kill, though - perhaps an intended behavior). Did not get a chance to go for more tries, as I ran out of time to play.
Duplicate thread closed. Please note that this challenge was bugged in the same way when it first appeared as well - seems very spotty as to when/if Valkyrie kills actually register properly.