kill 9 deathclaws without weapon. yep, got that yesterday. that's just a big [censored] "nope!"
I think that they are not joke objectives but really hard ones. But they can be completed. You need just good first and second floor design, steady supply of stimpacks and enough of strong lvl 50 dwellers (the ones who has Endurance full trained from lvl 1 will be the best). You will manage to kill at least one of them without weapon and can take rest out with weapons. It will take long time though. And i skip "Bald" objectives just like the "Assign xx dwellers to the right room" ones (I have almost everyone in the right room).