So I have finally reached the part of the story where I need to send a soldier into the Gallop Chamber. I have an assault with a fully leveled psi-tree, with none of my other soldiers eligible for psi training because they are weak-willed pansies. I try to start the Gallop Chamber quest, or whatever you would call it, and it says I have no eligible soldiers. What am I missing? Is there another level of psi-power my assault is yet to achieve? Do I need more Psi-soldiers? HELP!

Slap some psi armour on that bad boy.

That should give him the Will Score he needs, unless heès been critically wounded a bunch.

You need to make a 90-100 will check for it to work.

Most uninjured soldiers have 70, pre Iron Will.

Hence, psi armour will help make up the difference.

Ah, psi armor, that should have occurred to me. Thanks guys!