Abstract: This paper presents work in progress on developing a meta-theory of C2 in emergency management. Most research in C2 focuses just on one or two scientific disciplines. Just one paper has been found that gives a systematic overview of the science of C2. The approach taken employs entity-relationship modelling, yielding a set of scientific disciplines. These disciplines are compared with five military C2 doctrine publications. Doctrine found in at least four publications corresponded to the disciplines of decision theory, leadership theory, organizational theory, psychology, and the degree of delegation. Some topics not covered by the disciplines were found, indicating that analysis should be extended to C2 processes, resilience, and agility, permitting the development of guidance for practitioners. Further work is needed to compare the disciplines with civilian doctrine. Moreover, the disciplines could be compared to ICCRTS and ISCRAM conference proceedings, yielding an assessment of the maturity of C2 research.