Multi-Attack Protection (MAP)

Multi-Attack Protection (MAP) (formerly known as Gangbang Protection/GBP) applies to Provinces that have been attacked recently. More attacks on a province increase their MAP level, which increases the level of protection they receive. This protection is greatly reduced in war. 
A province's current MAP level can bee seen on their Affairs of the State page or by taking a crystal ball / spy on throne.
Failed Attacks (including raze bounces) also increase the MAP of the defender, based on the relative Offense sent compared to the target's defense, linearly scaling from 0 to half the amount of MAP generated on a successful raze.
== Effects of MAP ==
A higher MAP level on a province reduces the resources lost and military casualties from attacks received, while increasing the province's base Military Efficiency.
MAP rounds off to the nearest whole percentage (eg. it can be 20% or 21% but not 20.5%) and its reduction effect on resource losses and casualties is capped at 20% in War.
Once MAP is above 25% (Moderately hit) the amount of tax on any aid shipments received is capped at 15%.
MAP level	MAP description 	MAP rating	Gains Out of War	Gains in War	Increase in ME	MAP Decay
0 	Not Hit 	0% 	100% 	100% 	N/A 	0
1 	Couple 	1-20% 	80-99% 	80-99% 	1 	
2 	Moderately Hit 	21-40% 	60-79% 	80% 	1 	
3 	Heavily Hit 	41-60% 	40-59% 	80% 	2 	
4 	Extremely Heavily Hit	61-90% 	10-39% 	80% 	61-79%: 3 
80%+: 4	
== MAP from attacks ==
=== Land Attacks ===
 A land attack (Traditional March, Raze or Conquest) increases the MAP rating by 2.75 * % of Target's land taken. 
For example if a target is attacked for 120 of its 1000 acres (12%) its MAP rating will increase by 33% (12% * 2.75 = 33%). 
=== Non-Land Attacks ===
 Non-Land Attacks (Plunder or Massacre) increase the MAP/GBP rating by 0.06 * Current Gains OOW
 Learn increases the MAP rating by 0.12 * Current Gains OOW
For example if a target province has -20% resource losses (e.g. from castles or MAP level 1) and thus 80% of normal out of war gains and is attacked with a Plunder, it will boost its MAP rating by 5% (0.06 * 80% = 4.8% rounded to 5%).
== MAP Decay ==
* MAP rating decreases every Utopian Day. The amount MAP rating decreases depends on the current MAP rating and ranges between 1 and 4. For example if the MAP rating is currently 59% (heavily hit), on the next hour change it will decrease by 2% to 57%.
* MAP also decreases instantly when a province with a MAP rating above 0% makes an attack. The reduction is calculated as the inverse of the amount of MAP an attack would have generated if if the province had attacked itself.
== Military Effectiveness ==
 MAP gives a bonus to base Military Effectiveness equal to the MAP rating / 7.5
For example if a province has MAP rating of a province is 75% (Extremely heavily hit) its base ME is multiplied by 10% (75 / 7.5 ).