Hmm, I don't know, it sounds like it should work... Below is a section from EoDII; maybe you can see something different to your code...
Code:
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faction sarmatians
culture roman
symbol models_strat/symbol_sarmatians.CAS
rebel_symbol models_strat/symbol_nomad_rebel.CAS
primary_colour red 74, green 26, blue 47
secondary_colour red 152, green 81, blue 13
loading_logo loading_screen/symbols/symbol128_sarmatians.tga
standard_index 5
logo_index 234 ; Index into strat3.rsd
small_logo_index 248 ; Index into shared.rsd
triumph_value 5
intro_movie
victory_movie fmv/victory/Vamp_victory_0001.wmv
defeat_movie fmv/lose/eliminated.wmv
death_movie fmv/lose/eliminated.wmv
custom_battle_availability yes
can_sap yes
prefers_naval_invasions yes