This Army is going to be based around a Renegade Commander, a battle leader.... comming to save the Empire from the weak control of the Senate, and extravegant excesses of the Egytus forces. They will need sheilds first tho.
The completed force will have 2 added warband, the Skavenii and Lintzii, along with a cavlary unit or two.
The current auxilia, these may be replaced with more ethnical warband types.
A veiw from ground level.... experimental by me.