These Romans have blundered into an ambush! In their eagerness to crush a smaller Carthaginian force they have neglected to scout the woods. Sure enough, a contingent of Spanish tribesman was hiding therein, and is now about to descend upon the Roman flank. Vae victis...
This picture is from a game using John Acar's Ancients D6 rules.
John's rules marry the simplicity of movement and command and control from games such as DBA with the slightly more dice-heavy combat system of games like Warhammer Ancient Battles and Ancient and Medieval Wargaming. I found it to be nice mix. It fits on a 2'x2' board, making it easy to set up and take down, and gave a good game. You can find a link to John's wargaming site in the links section on the left. He has also adapted it for fantasy battles as well. Give his rules a go, you might be pleasantly surprised.
