Hatch that leads down to the "missile garage". Missiles would be lifted up through this hatch and positioned on the rails going left and right. When seen from above[a] the launch configuration is clear - two missiles to the right and one to the left, with the fourth being launched from the garage.
Nuclear warhead transport container. The container would be taken to the assembly building and positioned behind the avionics section that make up the rear of the nose cone. The package then slides out on the two rails and can be attached to the nose cone.
Missile tracking radar (front) and Low Power Acquisition Radar (LOPAR) antenna. The former was used to guide the missile to the target, and the latter would detect the incoming Soviet bombers.
I like this photo. It turned out nice. But it's nothing. There's video, too, but it's nothing.
It was one of those "you had to be there" experiences: When the "intro" ended and the real performance started, there were jaws on the floor.
I know it wasn't just me - photos prove it. There are some badly cut videos, hastily resumed after the main part started and whoever shot it realized that what they'd seen was just the warm-up, that's been posted and which you can find - but again:
You really just had to be there.