Neat advantage of 3D

3D models have many advantages over 2D sprites, (and drawbacks too), but when it comes to little details, 3D has a neat one – we can change how a unit model looks and that change is propagated throughout the game immediately. Take for example Serf, e.g. we want to give him a mustache – we change the 3D model, hit “reload resources” button, and voila – all serfs in the game have mustaches when walking any direction, carrying any ware, eating any food, just everywhere.