An Occultus Faction possibly worked out?

[Brennus]

Perhaps we are looking at this the wrong way. So far most people have assumed that the symbol is facing left. IMHO we should look at it as if it were facing right. From the right it looks to me like an elk or bison. Although it could just as easily be an indian creature the culture slots make this impossible. Therefore I think we are dealing with a western, temperate faction.

If this is the case looking on coins for the answer will not help, I am studying Celtic coins at the moment and can tell you the only animals depicted are horses whilst no Germanic group were minting coins at this time.