Talk about brigandine armour and the plate leg defences would suggest a relatively late date - late 1300s or so - but then again the that was the time Italian communal infantry reached its peak too.

Other than that, AFAIK the pavises were normally carried by separate troops - armoured spearmen somewhat unimaginatively called pavesari - who formed the first ranks to shield the crossbowmen from enemy missiles and shock troops in what seems to have some remarkable similarities to the ancient Persian sparabara system, but one has to make concessions to the limitations of the game engine I guess.