That being, Link has the Triforce of Courage and it has been stated that this gives Link the ability to master any item/weapon he gets his hands on without any training almost as if its instinctive. So the question here is, if he was put into a more modern setting....would that power still apply? Like if he got a hold of a gun, would he be able to shoot it with master accuracy? Would he be able to master driving a car, a plane, a jet? 
 
I mean, I would assume so being that theres nothing really stated on the Trifroce of Courage that it is limited to what it can do for Link.

The Triforce of Courage has never officially been stated to give Link any powers or abilities. Some speculate it gives him mastery of any weapon and increased courage. We do not know for sure. The only thing we know about it is it provides Link with some mystical protection. In Twilight Princess it turned him into a wolf instead of a shadow. Some non-canon comics occasional gave him a protective shield and sometimes restored his life.