For Reforged, a map to gives one custom hero the Units\Demon\DoomGuardSummoned\DoomGuardSummoned.mdl model — a new Doom Guard model for Reforged. When players attempt to play the map in classic graphics, there is no model whatsoever — rather than showing the classic Doom Guard model for players in classic mode, there is instead no model whatsoever.
This also extends to another model which was added in Reforged: units\creeps\SkeletalMarksman\SkeletalMarksman.mdl
The fact that these models were given no “equivalents” to be used for players in Classic graphics and thus turn invisible is completely unacceptable.