AFAIK It's allowed, can't remember exactly when but it was mentioned in the shoutbox.
Edit: Also I don't think it's a massive issue, it'll be easier for them to play and they don't quite interrupt the game (like if they reconnected when they are king or assasin).
Edit 2: Here's a quote from the CoD4 Server Rules Page just to backup my previous assumption:
- Reconnecting/leaving as dog is allowed.
Why does it bother you? Any particular reason?
Well theoretically you are right but still I don't think it's that much of an issue, that's just my opinion, anyway I got to go so you'll need to discuss this subject with someone else.
Regards Yuri.
Hey Harry Potter,
I really don't think it's a problem, for several reasons:
- Assassins win most of the time, be there 1 or 2 assassins at the beginning, so I don't think it's important.
- It doesn't make the game stop as if the King reconnected.
- When they rejoin, they rejoin as assassin, not guard, so they're still 2 assassins (though if he gets killed by king, he'll be back in the guards team, yes)
- I do it myself sometimes 
I hate being dog. Though I love being assassin.
Maybe I forgot some other arguments, that was just what was on the top of my head 
Anyway, you're saying some people do this as dog/slave. But I think it's 99% as dog, because many people dislike it, but are okay with being assassin. So this issue surely won't even exist anymore in the next mod update, because people will be able to change whether they want to be picked as dog or as assassin.
#Topic closed.
