As robotic technologies mature, we are moving from simple systems that roam our laboratories to heterogeneous groups of systems that operate in complex nonstructured environments. The novel and extremely complex nature of these autonomous systems generates a great deal of subsystem interdependencies that makes team, individual system, and subsystem validation and performance measurement difficult. Simple simulations or laboratory experimentation are no longer sufficient. To assist in evaluating these components and making design decisions, we are developing an integrated real-virtual environment. It is our hope that this will greatly facilitate the design, development, and understanding of how to configure and use multi-robot teams and will accelerate the robots' deployment.