class structs that inherit from superclasses will begin with their
superclass's structs in order. so object, then unit, then biped.

render_method
	shader
	shader_beam
	shader_contrail
	shader_cortana
	shader_custom
	shader_decal
	shader_foliage
	shader_halogram
	shader_light_volume
	shader_particle
	shader_skin
	shader_terrain
	shader_water


object
	crate
	creature
	device
		device_control
		device_machine
		device_terminal
	effect_scenery
	item
		equipment
		weapon
	projectile
	scenery
	sound_scenery
	unit
		biped
		giant
		vehicle