I drink potions manually. Wynne heals as she should, if that answers your question.
Taking a quick look in my game, it seems like red tactics are tactics that have some enemy condition set as the condition. I only looked at it briefly though.
That doesn't explain wh they don't use them, but thanks anyhow.
Is this for all people, or just Dog's howl? What's the condition for it?
Only Dog. He uses his other skills normally too. The condition is under any circumstance (I've got a localized DA, so no idea what it's called in english).