Well you have until Jan 7th and I was getting to the Boss in 4 minutes [kill within 5] so it's pretty easy tbh - fact I've done the 'Seasonal' Objectives within days every time shows they aren't that challenging/time-consuming
I mean where has the flat kills challenge gone? Went from 2500 to 1500 and now gone completely - surely they should have increased it, incentivise playing more no?
It is unfortunate it relies on RNG, would've thought she might have been consistently the Boss of Biotics Lab Objective [at least until Season passes] but alas she is not
To those who don't have the time or patience, you could always find someone* who does and then join them for Boss waves? Just a thought
*That doesn't mean myself, I plan on taking it easy this holiday season