Friday saw another HC game at the BOD in Utrecht, the Netherlands. We did encounter an interesting HtH situation of three small republican r/woman units versus two normal sized units gallic warbands. Read how we sorted it out at: https://janwillembootsblog.wordpress.co ... he-womans/
That's the way I would do it, two against one and the results together decide the winning side. An alternative way would be to use a single Roman unit as the fighting force and the one next to it would be supporting, regardless of the fact that both units are in fighting positions.
That's a good point, taking the middle unit as support. We decided not to do that because of the number of dice. As support a small heavy infantry unit only adds 3 dice to the melee, whilst as engaged they add 5. Compared to the two normal unit alternative this comes down to 14 dice (two normal units) compared to 15 dice (engaged options) or 13 dice (support option). Given the fact that we felt that the list designers prefer players to use the small unit option we felt it best to allow the romans to have one more die.
A thing to also take into consideration is the situation of two small units versus 1 normal sized unit. Because in that case the overlapping small unit has exactly half of its frontage covered and its leader figure in contact, it would count as being engaged, further supporting the engaged option. One could also just add the middle unit to one of the two implicit melees of this larger combat. However, I think that would create a large and undesirable imbalance in the situation.
Perhaps the best way of looking at this type of situation is to start looking at what the leader figure of a unit is doing. When it is unengaged the unit is supporting, of not it is engaged and fights with all its might and power.