In this paper, virtual cell layout (VCL) based dynamic source routing (VB-DSR) technique is introduced for the mobile subsystem of the next generation tactical communications systems. VB-DSR uses dynamic source routing (DSR) protocol over VCL structure, which is a resource management and clustering technique for tactical communications. The application of the third generation personal communications services to the tactical communications is enabled through a hybrid, i.e., ad hoe and cellular, infrastructureless architecture by VCL. VB-DSR enhances the schemes for the ad hoc components of this architecture. The performance evaluation of the proposed technique shows that the VB-DSR is scalable for tactical communications.