Heaven really is too perfect for a RPG setting- if you use the traditional version espoused by real-world religions. Utopias of any sort make very poor settings for games or stories- "Interesting Times", as the Chinese put it, are usually not very pleasant to experience personally.
There are a number of sources that paint Heaven and the Angels as less than perfect- Vertigo graphic novels (Especially Lucifer) and the Prophecy films are foremost in my mind. The only RPG that has managed to make Heaven even remotely playable was In Nomine by Steve Jackson Games (although even there, hell was more fun).
The rules were pretty much unplayable, but In Nomine did have a few good concepts in it.The one theat makes Heaven playable is the idea that Heaven is not perfectly serene and blissful- and hasn't been since Lucifer's rebellion.
One third of the Host of Heaven defied the Word of God and were cast out for it after a brief bu bloody war. The remaining Angels are forming factions, and starting to suspect anyone who doesn't share their beliefs of Heresy. A Divine Inquisition has been formed, and is rooting out the unfaithful. Lucifer was the first, the highest, the brightest and the most beloved of all the Host- if he could Fall, anybody can.
Yes, God is all- powerful and all-knowing. He could easily tell who is truly loyal, and who is judged unfairly, and put a stop to any injustice or quash any dissent. But by that same logic, He would also have forseen and prevented Lucifer's revolt. Either He isn't all the propaganda claims He is, or He's letting things happen in his own Mysterious Ways.
I think this would carry over well to including Heaven in an Infernum campaign. After all, the Angels are still Falling, and in no small number either. Obviously something isn't quite right on the other side of the Lethe Clouds...
And that's fine for those of us who can differentiate between the two. Unfortunately there are people out there that will read Infernum and take away some serious misconceptions about hell. As a sunday school teacher, I'm the guy on the other end, trying to unravel these misconceptions. I already have teenagers in my class that say stuff like "When I get to hell, we're going to party every day man." Or they think the devil is like some Pokemon villain. And it's widespread stupidity, because we still have people who think Satan is a guy in red suit, carrying the ol' pitchfork, and sitting on a throne in hell. I'm not trying to open up a theological debate -- I just think you guys could spend your creativity on more worthwhile subjects.
