This is really really really taking the piss. I have put Easily 24+ hours into the sleeper node grind. Got 39/40 and still havent gotting "The Frigid Jackal". Im grinding 6 hours or so a day to get nothing. Seriously all i need for the title and its taking the right piss. Please add protection to the breytech engrams to give you what you dont have.
I was stuck at 39/40 for ages. Looked online to see which one I was missing (one up near the lost sector in the Bray complex) so made sure I only made stems down near the hive public event....increased my chances by a little. Eventually got it but talk about a waste of time!