1.打开date/ai/misc 文件，搜索 NationalSpecialties 出现以下
NationalSpecialtiesTypes
{
        better_colony_morale = 5.0                        //0 +5 starting morale
        better_effect_from_church = 5.0                        //1 +5 base value
        better_supply_of_colonists = 1.10                //2 +10% colonists flow
        boarding_effectiveness_increased = 1.10                //3 +10% crew amount on boarding
        cheaper_trade_ships = 0.90                        //4 -10% trade ship price
        cheaper_upgrades_to_gem_cutter_buildings = 0.80        //5 -20% build and upgrade price on gem cutter
        faster_ships = 1.10                                //6 +10% speed on strategic/ tactical
        friendlier_toward_natives = 1.25                //7  Increases missionary effectiveness by 25%
        grape_shot_more_effective = 1.20                //8 +20% more damage
        higher_iron_ore_flow = 1.40                        //9 +40% flow rate
        higher_profits_from_Level_3_goods = 1.05        //10 +5% sell price on level 3 goods at home port
        increased_gold_ore_flow = 1.50                        //11 +50% flow rate
        increased_silver_ore_flow = 1.40                //12  Increases silver ore flow by 40%       
        longer_fleet_range_on_strategic = 1.15                //13 +15% more range on coastal vessels
        lower_colony_morale = -10.0                        //14 -10 starting morale in colonies
        lower_supply_of_colonists = 0.80                //15 -20% to colonist flow
        more_expensive_ships = 1.10                        //16 +10% ship price
        more_hostile_toward_natives = 0.80                //17 -decreased effectiveness of missionaries by 20%
        solid_shot_more_effective = 1.20                //18 +20% more damage
        wnone = 1.0                                        //19
}

NationalSpecialties
{
        britain
        {
                specialty1 = 3        //boarding_effectiveness_increased
                specialty2 = 8        //grape_shot_more_effective
                specialty3 = 14 //lower_colony_morale
        }
        spain
        {
                specialty1 = 1        //better_effect_from_church
                specialty2 = 17        //more_hostile_toward_natives
                specialty3 = 11 //increased_gold_ore_flow
        }
        portugal
        {
                specialty1 = 13        //longer_fleet_range_on_strategic
                specialty2 = 1        //better_effect_from_church
                specialty3 = 15        //lower_supply_of_colonists
        }
        france
        {
                specialty1 = 18        //increased_solid_shot_long_range
                specialty2 = 6        //faster_ships
                specialty3 = 16        //more_expensive_ships
        }
        netherland
        {
                specialty1 = 10        //higher_profits_from_Level_3_goods
                specialty2 = 5        //cheaper_upgrades_to_gem_cutter_buildings
                specialty3 = 4        //cheaper_trade_ships
        }
        denmark
        {
                specialty1 = 9        //higher_iron_ore_flow
                specialty2 = 2        //better_supply_of_colonists
                specialty3 = 0        //better_colony_morale
        }
        italy
        {
                specialty1 = 12        //increased_silver_ore_flow
                specialty2 = 7        //friendlier_toward_natives
                specialty3 = 0        //better_colony_morale
        }

}

britain不列颠（英格兰） spain西班牙  portugal葡萄牙 france法兰西 
netherland荷兰 denmark丹麦 italy神圣罗马帝国
比如我要改 不列颠的特性为 第一、二、三个       

britain
        {
                specialty1 = 0        //better_colony_morale
                specialty2 = 1        //better_effect_from_church
                specialty3 = 2  //better_supply_of_colonists
        }

注意 // 后面的只是英文说明，不改也可以，在游戏里没有任何影响和也不会显示该段话

这样修改后，进游戏，不列颠实际已经是0，1，2的3个特性了，而不是3，8，14的三个特性
但在开始选择国家和外交界面里，仍然显示是3，8，14的特性，下面还有一个地方修改

2打开 date/Locales 文件 搜索DIFFERENCIES

        // NATIONAL DIFFERENCIES

        str_NATIONAL_BRITAIN_1 = Improved boarding effectiveness
        str_NATIONAL_BRITAIN_2 = Grapeshot damage increase
        str_NATIONAL_BRITAIN_3 = Lower starting morale in colonies
       
        str_NATIONAL_SPAIN_1 = Improved effect from churches
        str_NATIONAL_SPAIN_2 = Lower standing with natives
        str_NATIONAL_SPAIN_3 = Increased flow of gold ore
       
        str_NATIONAL_PORTUGAL_1 = Increased range for coastal vessels
        str_NATIONAL_PORTUGAL_2 = Improved effect from churches
        str_NATIONAL_PORTUGAL_3 = Lower supply of colonists
               
        str_NATIONAL_FRANCE_1 = Solid shot damage increase
        str_NATIONAL_FRANCE_2 = Faster ships
        str_NATIONAL_FRANCE_3 = More expensive ships
       
        str_NATIONAL_NETHERLANDS_1 = Higher profits from Level 3 items
        str_NATIONAL_NETHERLANDS_2 = Gemcutter upgrades at a reduced price
        str_NATIONAL_NETHERLANDS_3 = Trade ships built at a reduced price
       
        str_NATIONAL_SWEDEN_1 = Increased flow of iron ore
        str_NATIONAL_SWEDEN_2 = Increased supply of colonists
        str_NATIONAL_SWEDEN_3 = Increased starting morale in colonies
       
        str_NATIONAL_HRE_1 = Increased flow of silver ore
        str_NATIONAL_HRE_2 = Increased standing with natives
        str_NATIONAL_HRE_3 = Increased starting morale in colonies

修改为： 
        str_NATIONAL_BRITAIN_1 = better colony morale
        str_NATIONAL_BRITAIN_2 = better effect from church
        str_NATIONAL_BRITAIN_3 = better supply of olonists

大功告成，进游戏看看效果