Well Im guessing its a b̶e̶l̶l̶y̶ ̶p̶a̶n̶ dumper of sorts (For delicious pizza pies), but what about the big center hole?
“The Pizza Box”. Genius.
I will tell you it is definitely not a belly pan.
Oh whoops I missed the title… Hmmm… My post on the hole in the middle still stands… 
I’m guessing it’s a box for delivering “pizza’s” (frisbees) to the pyramid goal. The hole in the middle is for a piston or some other actuator to push them out
guys its obviously their level three climber, come on how can you guys not see it…
I’ll tell you guys exactly what it’s for and what it does
In the reveal video in week 6
Ya really had me excited though for 4 lines!
But carbon fiber you say? I could see a dumper as we’ve considered something similar (As im sure carbon fiber wouldn’t be used on a purely decorative item). It doesn’t have to bear a lot of weight on it but would be a fancy bottom to a hopper.
It’s that hole in the middle that really has me thrown off. It’s obviously not a weight saving hole (You probably would save less than an ounce speed hole-ing Carbon Fiber), nor would it be a purely decorative hole. I’m betting that that hole has some sort of function.
Climber.
It’s part of a camera mounting/cover system.
Clearly a gearbox plate.
For a shooter? Hmmm…not a bad thought. It can’t be for their drivetrain.
Its their floor pickup. They can pick up both pizzas and frisbees!
Some of you are very close. Others are quite a bit off. All will be revealed in week 6
It’s the mount for your shooter system. The pizza’s are the wheels…
My guess.
Part of the disc feed system?
You will notice that the pizzas are symetrical; flipped about the Y-axis.
Looks entirely like a gearbox to spin up your shooter wheel from two motors still 
The holes on the pizza could be to mount the motors, and the center hole obviously to drive the wheel. Why the thing is so bug though… yo no se.
I really hope this is my original vision (which we will not pursue) - a level 3 climber that has a “goal” - same dimensions & reflective tape as high goal, so alliance partners can fire discs into it - that can then dump into the pyramid goal.