Forum adverts like this one are shown to any user who is not logged in. Join us by filling out a tiny 3 field form and you will get your own, free, dakka user account which gives a good range of benefits to you: No adverts like this in the forums anymore. Times and dates in your local timezone. Full tracking of what you have read so you can skip to your first unread post, easily see what has changed since you last logged in, and easily see what is new at a glance. Email notifications for threads you want to watch closely. Being a part of the oldest wargaming community on the net. If you are already a member then feel free to login now.

I couldn't find anything that would point out about a particular situation with challenges. If one single character is alone and charges a unit with several characters and then I challenge, do the rest of his unit get to attack me anyway or do they sit there and watch because they have no one else to attack.

They have no one else to attack, so attack you. The rule about only being in btb within the challenge has gone.