you could use the method applied in the tank example:
.....
rem Create a tilt object (to handle "independent" X & Z axis rotation)
make object cone 1,5
hide limb 1,0
rem Load tank model
load object "irontank\attack.x",2
scale object 2,100,100,100 :rem 75,75,75
yrotate object 2,180
fix object pivot 2
hide limb 2,1 : hide limb 2,11 : hide limb 2,14
rem Glue tank to tilt-object
glue object to limb 2,1,0
......
do
...
...
rem move object 1 instead of position object
>> position object 1,x#,h#,z#
yrotate object 1,a#
...
...
loop