The IP is going to be dependent on the ISP. Nobody here can say one way or the other.
All of this "hassle or no hassle" stuff will be determined by the purpose of him hosting a game server. If it's just for friends then he can easily get away with doing very little (no more than setting up the download url).
If he want's a fully public server then he's not going to be able to do it (given his current apparent ability).
Linear Mode
