Best tanker / tender

You are going to spec out your ideal tanker.  It can function as a nurse tanker to begin the operation.  It can then transition to a tanker shuttle.  It can fill brush trucks on a wildland fire.  It can start a structure attack if it is the first arriving unit.  This tanker can fumction as a usefull unit with any of the neighboring departments.What are the functional specifications of this tanker?  What additonal hose, couplings, adaptors and tools need to be added to the specifications for this tanker?I am looking for functional specificatons.  How big is the tank?  How quickly can the truck load itself?  How quickly can it unload itself?  What adapters are needed to perform any funtion a tanker may be called upon on a fire scene?In general what are your funtional specifications for your ideal tanker?