_d = 0
#loop
_x = random 400
_y = random 400
? stopmove =="jo": Exit
_pos = [(getpos player select 0) - 200 + _x, (getpos player select 1) - 200 + _y, getpos player select 2]
_obj = nearestobject [_pos, "westmarker"]
_obj2 = nearestobject [_pos, "eastmarker"]
deletevehicle _obj; deletevehicle _obj2
goto "loop"
A simple modification of the "Delete All"-script. Not tested, but I think it should work correctly.