I fielded Gauls infantry (9 warbands) in a single line, with general in chariots and auxiliary horse as separate body at the back.
Romans were fielded as 2 units deep 3 units wide body at the center (Principes and one Hestati unit in the first line, 2x Triari including general and one Hestati in the second). Single cavalry unit on right wing, auxiliary infantry and skirmishers on the left.
Victory for Romans.
For the next game, I would have to think about good strategy for Gauls in order for them to be able to break well organized Roman center.
I have to say that I really like ABC rules. Games are quick (last from 30 min to one hour), fun and straightforward. These are the rules you can always find time for, no matter how busy your schedule is.