Melee weapons against vehicles or drones? Options

[DarkShade]

Hi, all
I have an odd situation, one of my players plays an adept, dikoted katana specialist. has strength of 9 so does 12S damage with it.
he wants to attack a drone which is directly under rigger control.
first my question is what gets rolled. he rolls is katana skill, but what does the rigger roll if anything?

second question, this particular drone has armor 6. because of this his power gets halved, ending with base damage of 6M which doesnt exceed 6 so he cannot harm the drone..
he then points out if he gets enough successes he can raise the power level +1 per 2 successes over deadly, and if he can get it to 14 he can damage the drone <find a weak spot, whatever>

could anyone pls help clarify this?

Edit: another question, this rigger then decides to have his car attempt to run over the adept.. what gets rolled? the ramming rules between 2 vehicles are clear but between a vehicle and an unwilling human? <I considered it at the time an opposed test between reaction and car skills..but am not sure if there are better rules..>

Regards,
DS