[Tuba4]

The ramp certainly has to fit inside the base at the start of the mission. And don't forget the 16" ceiling either! But it does not have to return to base each time. Even though it was a part of the robot when it first left, once the robot disconnects from it, the ramp becomes a strategic item. The team could ask for it to be removed from the playing field, but in this case why would they want to?

It also looks like it might be hinged in the middle in some fashion.