No way to know.
If you an Illinois resident, adn you are hunting with a firearm, yes. If you are not a resident, you cannot get an FOID, and it is not required.
As of 2021, there were approximately 2 million firearm owners in Illinois. It's important to note that this number includes registered gun owners as well as those who may legally possess firearms without registration.
So long as the firearm itself is legal in Illinois, yes.
No.
No
Probably Texas
Books, letters from the maker, owners,
Are you referring to the Illinois FOID- Firearms Owner Identification Card? For Illinois residents, it permits them to purchase any firearm legal in the State of Illinois, with the exception of residents of Cook County, which has more restrictive laws in place.
You would need to specify what "firearms licence" you had in mind, as well as the location you were referring to. In most of the US, no such licence is needed, save for Illinois, which requires you to have a Firearm Owners Identification Card (FOID).
It is the same as if you actually committed the robbery yourself.
Impossible to give an exact answer, since no laws require registration of gun owners. It is ESTIMATED that between 30% and 40% of adult Americans have at least one firearm in their home.
To possess a gun or buy ammo in Illinois, a resident must have a Firearm Owner's Identification Card.