Played a game of Saga Age of Invasions at the club last month. 6pts of my Late Romans vs 6pts of Dennis' Huns.
The plucky Romans deployed in line with infantry in the centre and cavalry to the flanks, in this case Gothic elite cavalry (3 x hearthguard units), pedyts (2 x warrior units) and sagitarii (1 x warrior unit). The aim was to try to restrict the Huns movement by hemming them in with the Roman line.
All in all, a disaster for Roman arms against the much more mobile Huns. I foresee a need for the Romans to secure light cavalry of their own, plus consider using levy light cavalry to provide increased force size to help with the hemming in.
Thanks for looking.