Events are growing in number and size and challenge the management of crowds in public spaces with complex tactical operations. Surprisingly, however, command and control technology (C4i) is non-existing and communication often limited to radio. While C4i is frequently used in governmental or military entities, they lack agility and simplicity to be operated efficiently by event safety services. We close this gap and created a market-compliant scalable SaaS-based solution using a mobile app.