Cross Level npcs

[Solareon]

okay each level is 64 tiles by 64 tiles wide right? well this doesn't allow much room for many many many players at once. I was wondering if there is a way to possibly create scripts that don't have to be weapons (the basic cross level npc) to communicate with other npcs. Either that or make the levels much larger. If the levels were larger then that would be great. but some way of making non weapon npcs that can communicate across levels. Or even jsut weapons that can communicate with npcs in different levels. (Cell phones for instance)