Hi everyone. I'm needing some advice. When building a Dio do you mount your models? If yes, how? I'm going to be building a dio with 6 tracked vehicles. there will also be wires to light up the inside of the vehicles with red light. Thanks.

By "mount" I suspect you mean "attach" the vehicles to the base and not maybe try to procreate with them ?
I would recommend attaching them yes.
J

Hi Ian,
I also like to attach the model to the base, When I sculpt the base in gipsum I wait a bit until the gipsum starts to cure and then I press the model into the (soft) gipsum, wiggle it a bit and then remove the model again. Later the model will fit nicely and you can finish the seam with some mud/grass, ...
I use some wood glue or construction glue.

Goodluck and kind regards
Steven