AFAIK, the params used are not in any AACW settings files.
But, its the same engine, so in theory, the params should work.
From WIA:
// ***** SIEGE *****
sieValueForSiegeBonus = 12 // How many Artillery Combat Pts needed to get a +1/-1 modifier to siege
sieOutcomeDiceRollSides = 15 // Sides of the Siege Outcome rolls / compared to TQ/Discipline
sieWagonDepotProtectChance = 50 // Chance that a non empty depot/wagon protects against surrender
aseProdCoefLocked = 25 // Percent of base supply when under siege with port unblocked
sieExtraModifier = 1 // Extra Modifier (positive: help the besieger)
sieSurrenderModEndangered = - 3 // If structure breached, lack of supply and weaker than besieger, get this penalty to surrender
rulBreachForAssault = 0 // Assault allowed without Breach
From RoP:
// ***** SIEGE *****
sieValueForSiegeBonus = 10 // How many Artillery Combat Pts needed to get a +1/-1 modifier to siege
sieOutcomeDiceRollSides = 15 // Sides of the Siege Outcome rolls / compared to TQ/Discipline
sieWagonDepotProtectChance = 95 // Chance that a non empty depot/wagon protects against surrender {increased from 50 => 80 March 11, 2010, then from 80 => 95 March 17, 2010}
baseProdCoefLocked = 25 // Percent of base supply when under siege with port unblocked
sieExtraModifier = 1 // Extra Modifier (positive: help the besieger)
sieSurrenderModEndangered = - 3 // If structure breached, lack of supply and weaker than besieger, get this penalty to surrender
rulBreachForAssault = 1 // Assault not allowed without Breach
Simply create a new file (Siege.opt) in the
\Settings folder
Then tinker
(the param
sieWagonDepotProtectChance has a large effect. Lower value creates more "quick surrenders")