At the Empire Total War website it is told that:

"Units in ETW are hugely improved over Med2, each unit can have variants of each body part modelled- torso, legs, arms, head, hat, cross-belts, hair, cuffs, face hair, and hands. It’s a huge number of variations to render and a challenge to efficient instancing.
The higher your Unit Detail setting the more variation you will see in your units, from coarse level detail such as two chaps with different coloured tunics, to fine detail such as different beard styles close-up." (http://blogs.sega.com/totalwar/2009/...-shop/#more-83)

When I set the unit detail to ultra, each soldier type gets two different sorts of faces. When set to lower than ultra, there is no difference at all (all "line infantry" faces are the same, all "general's bodyguard" faces are the same etc). Is it supposed to be like this or is there something wrong with my install?