The cornerback spent the early part of the campaign contributing on special teams plays, but has moved into the defense following Chris Owens's season-ending knee sprain.
The rookie told the team's official website: "I want to take full advantage of those [snaps] and do whatever I can do to help the team progress in the direction we want [to go].
"Whatever scheme we roll with, wherever I fit in, that's where I'm going to play. The next four weeks I want to compete at the highest level.
"It's helped a lot. The more you know, the longer you will last in the league and that's what they keep saying. Being put in different positions and fitting in the scheme, I'm there taking advantage of all opportunities."
McFadden has made three tackles so far this season.