Of course,
class cfgmodels
{
class default {};
class Vehicle: default {};
class tank: Vehicle {};
class m113: tank {};
class BOB_snowM113: M113 {};
};
The entries are slightly different for different vehicles (jeep, tanks etc)
and the last line :
class P3dname: M113 {};
must be the name of your model otherwise it wont get rid of the flashes
dont forget, this is Cfgmodels NOT cfg vehicles as i made that mistake.