MMH5.5 - Heroes of Might and Magic 5.5

Can I revert the base attack and defense skill to 5% instead of 2.5%? Where is this setting located? Could someone suggest a script that would double the creatures' inherent primary attack and defense skill values? In this case, we could keep the value at 2.5%, but it would be doubled for all creatures, and the hero wouldn't have such a significant impact on the final value.