Wan Shi Tong wrote:
Well the rules for charging only state that you need line of sight and enough movement to get into base contact, with the measurements being made as normal, to make a charge. Moving a model with compel half way through doesn't violate that wording exactly and making a courage test at the start of a move still fits in. I see how you could interpret it to exclude using this compel loophole, and that's what it is. But I don't know if its got definitive argument it needs when going up against the conventional interpretation.
But the rules for charging an enemy with terror state that you test before moving, and if you fail, you do not move at all.
I hadn't taken the casting range of compel into consideration, so that, in my opinion does change things a bit. After thinking this through some more, I've bounced around on opinions.
I think there's an argument that can be made for the fact that you can declare your intent, make the courage test, move part way, then cast Compel. But I'd tend to think you'd have to commit the Will upon the declaration, and spend it without even knowing if you'll pass the courage test. That *feels* appropriate to me, but I'm honestly not really sure it flies.
A purer interpretation of the rules, at least to me, just leads me to believe that you just can't perform a Compel assisted charge. But this would be a good question for GW.