1 x CP - Cataphracts
1 x CL - Hun Mercenaries
1 x CP - Foederati
1 x FP - Legion
1 x FL - Auxilia
2 x FP - Foederati
2 x S - either bow or javelin armed skimishers.
1 x Art - Ballistae or Carroballistae
Change 1 unit of S for an additional unit of CL
Special rules. Impetuous foot charging auxilia and legionaries halve their Impetus Bonus.
If on cart, Roman artillery is considered as a "mounted target", but still benifit -2 minus for shooting vs artillery.
The pictures again are not the best and will have be replaced when time allows. The Illyricani aren't in the Basic Impetus list but have used as proxy Huns prior to the completion of the Hun bases. They however, can be included in the army from the main lists.