
this isn't call of duty the map isn't 10ft by 10ft and the system COD uses is the only cost effeicent way of making it possible which is P2P (peer 2 peer). Skyrim is already taking majority of not every bit it can to run doubleing that load is impossible on current hardware without very severe cuts in terms of graphics and stability.
Also here you go.
http://www.gamesas.com/topic/1320106-official-tes-multiplayerco-op-thread/
