Do they need a landing pad? They have to be capable of landing on unimproved martian or lunar rock, with enough spare capacity for either the fuel for a return flight (from the moon) or a local fuel generator (from Mars).
That should work, but it will likely not be able to safely launch again even if you managed to refuel it.
The engine power needed to launch in Earth gravity, even with a small hop fuel load might be too much for engines so close to the ground & with thick atmosphere preventing the exhaust from dissipating.
Oh... I forgot about the noise from launch, which is loud enough that echos could damage the vehicle if not damped.
Some form of tower to stand off the exhaust would be required.
The engine power needed to launch in Earth gravity, even with a small hop fuel load might be too much for engines so close to the ground & with thick atmosphere preventing the exhaust from dissipating.