This mod changes security cameras to alert the camera operator instead of triggering the alarm directly when they detect something. This only works on heists with a camera operator, on other heists the vanilla behavior is used. Only works when the host uses it, clients don't need the mod for it to work for them.

You can also find this mod on GitHub, so if you want to help with anything, feel free to fork the project, make changes and create a pull request when you're done.