It's a war game that can be played by ordinary people, so lets show ordinary people at war.
Seems like a first thought - and that's not a bad thing if you ask me. Usually a first thought is something to get the brain ticking, but then again this is what we do for a living, so why shouldn't we be able to come up with the best idea first? Just because you don't labour over it for days doesn't mean it isn't a great idea.
Oh and you need to execute it brilliantly, oh and you need to pick a great soundtrack, oh and probably a boat load of cash.