So important for setup a live broadcasting studio

Hello everyone,

I am now in the process of creating a studio to record after meetings in addition to live broadcasts
I have chosen Blackmagic for its great reputation in this field

I am very puzzled that my experience is not strong enough to choose the right equipment, especially with different types of devices available
What is required is
- Create a studio based on chroma for live broadcast.
- Choosing the right cameras and lighting units
- Selecting suitable lighting units for inside filming..
- Selecting suitable lighting units for outside filming

Q: Do I need a ATEM Switcher in case of buying a Ultimatte 12?


Its just emergency because i will be in US next 2 days. and I will get everything form there.

Thank you so much for you help