[Tristan Lall]

Rommel contemplating a half-track? That's impressive.

As for the half-track robot, I don't recall seeing any. Are you thinking of using driven front wheels? If you don't, consider that you will be at a bit of a climbing and pushing disadvantage, compared to robots that can use their entire normal force to push on things (by powering all wheels); the track will mitigate this somewhat, but depending on the weight distribution, this might not be sufficient.