No. The Control Center Simulator is an extra DLC for OMSI 2, which is also compatible with the Bus Company Simulator. Both products are different and complement each other. The Bus Company Simulator concentrates on the management and playing in a virtual bus company, the Control Center Simulator on the collective organizing and driving of control center events.
The 3D company premises is a very extensive revision of the BCS company premises. (Changelog). Bus Company Simulator users receive the new company premises as a free update, thus also the compatibility between the products is guaranteed. In addition, BCS users receive a discount on the Control Center Simulator.