Last night we managed one more achievement, killing Freya with one Elder up. On Sunday we got a minor one on Hodir, as our members do not know how to move and prevent the stacks.
We also had a few attempts at Thorim, but we will not kill him in hardmode before people learn how to move. Wait, that sounds familiar.. So we only got the half way there achievement
Healing the tank in the tunnel should also boost our chances.
Superku does much better screens than me, nag on him to take more!