Since you typically only get to do "one" significant one in your career, you don't want to make obvious mistakes since they will haunt you for years to come. There is one of these design aids at EOC Facility Checklist: Avoiding Surprises which I think would very useful to someone contemplating a new EOC.
There are a few tips missing that I might add, like "Don't put the HVAC system on the roof of the building" and for those of you who can afford the space for a dedicated bunking area--more power to you!
Still, it would be a great place to start your own personal list on what you need as you begin the EOC design process.