Well i don't mind an army of demons. It will expand Gerard's collection <chuckles>. But he only takes high quality specimens or those that have great potential.

As to running into each other. I think you should split Capitol City into regions. So that people can develop their characters before randomly bumping into each other. I was thinking of just having Northern, Southern, Eastern, Western. But maybe having SW NW SE and NE corners would help people navigate towards others. just appearing after a couple posts seems a bit like cheat (unless the person has a special mode of transportation.

Actually i wanted to ask about the streets. I assumed due to the chaos and the monsters the streets are more or less abandoned with normal people and even frightened supernatural individuals would be in hiding throughout the city. I hope i made the correct assumption.

Back to areas. If we go with different city areas. then creating key locations in each one would be great for meeting with people and plot development. I just got a thought as i typed it out. What about Capitol City's largest Hospital is one of the most heavily guarded locations in the city. Military as well as strong (popular and well known Supernaturals) the ward of attacks from the demons. 

And in regards to angels ( this will probably help White Alice out) where the heck are they and what are they doing? Balthazar has an army in the city it seems. Shouldn't the Angels also have one? Are there more Demons than Angels? If a large force of angels is around then perhaps they are dedicating most of the resources to protect the humans, via magic and their personnel. If the Angels can't spare many perhaps several small groups of angels are conducting guerrilla warfare on the demon forces. Perhaps the demons out number but the Angels have a higher quality of warriors overall.