A robot starts at one end and goes down a 35' track, through the 3 obstacles, and into the shack where our soldier is being held hostage. First dispose of the radioactive items and take them to the drop-zone, then come back for the soldier. The shack has live video back to a TV where the human operator is standing. Our school's robots will also have wireless cameras on most of them so the students can get a clear picture of the action on their laptops, also set up next to the human operator near the beginning.
Some have flexible drivetrains, some have 6 wheels, & some have tank treads. Continuous rotation servos and 12V DC motors are used for movement.
Some have anti-rollover systems & independent suspensions.
And remember kids:Next post, manipulators and end effectors!