That would be rather cool, TheLion. Are you thinking of something like Shogun: Total War? It's ambitious but certainly doable - check out this article over at Gamasutra (free registration required first).

The origin for the Indie Game Jam was simple: Chris Hecker and Sean Barrett, two of its organizers, were brainstorming game ideas one day and they asked themselves a question: How many sprites can you put on a PC screen with modern display hardware these days? Even fairly aggressive games like Shogun: Total War never display more than about 1000 units at a time. What's the real upper limit? They did some research and came up with an answer: about 100,000.