Perhaps for once do a war RP that will be something different than "Conventional conflict of Communists vs Democrats vs Fascists" or "Aggressive dictatorship invades peaceful democracy"?
If I were you my guess would be something akin to the Troubles in Nothern Ireland; focused on action of small units of urban guerillas mutually trying to blow each other up in a war between two mutually disliking religious / ethnic / whatever groups.
Lots of small unit urban area actions. How does that sound? I will not likely participate but I will eagerly provide you with advice.