Happyjew wrote:
I'm curious as to where the rules specify that every model has to be able to be pinned in order for the unit to be pinned.
They don't. They also don't specify that a unit can be still be pinned if it's of a mixed type, such as bikes and infantry.
It would need to be looked at on a case by case basis. Here's my thoughts on a couple:
Fearless says unit with at least one model, anything else that keeps models from being pinned would have to be looked at individually.
An
IC on a bike becomes part of the unit "for all rules purposes". This is a very poorly written rule, and has lead to many headaches. If you take this to mean the
IC becomes the same type as the unit it joins, then it can be pinned along with them. If not, then they can't be pinned, but the unit can, meaning the
IC suffers no penalties, but the unit does. Nothing I can find would make the unit immune to pinning along with the
IC.
If a unit has a mixed type natively, lets say hypothetically it's four infantry and a walker, then I can't find anything in rules to address this.