When doing the challenge for toggling between cameras, my intuition was to just toggle the 3rd person camera only. I assumed that this would just switch to the 1st person cam as soon as the 3rd person one was toggled off. After testing this, everything seemed to work fine.
I think that Ben’s method of toggling both cameras is what caused the 1st person cam to default to inside the tank.
For an easier method, just toggle the 3rd person cam and you’ll be good to go!