As you may know the Rat is an terrible Defender and does not make many garrison for his towers. And if his Bowman are killed he wont recruit more Soldiers for his Towers.
And dont Forget the troll design of most of his Castles where the stairs are outside or the Castles that doesnt make sence at all.
Well thats over now!
Here an overview what my Castle does better than the original:
+The Castle are as small as possible (Because his Garrison is so bad he Needs the possibilty to defend his whole Castle from the Keep)
+Everything is actually inside the Castle (Which makes Slave-, Maceman- and Knight-Raids less powerfull)
+Build order and Weapon Industry is optimized (More Money for the Rat means he can longer survive and rebuild things)
+Does build an Well (In his original Castles he didnt even build Wells. With this he has the Chance to surive fire)
+several gatehouses (That automatically means his economy gets better depending on the map. And this also can helps him in defendig)
+The Castles Looks more like and actually Caslte (But i tried to Keep his weird style)
~All Castles have at least 5 Weapon-Workshops. 4 of this Castles have 6 Workshops which will give the Rat an better lategame but also and weaker earlygame compared to 5 Workshops.
Here how it looks:
I tried my best to decimate the weaknesses of the Rat and to Keep his style. If i can make the Castles even more effective i will update them.
UPDATE: I made the Castles smaller and cheaper to build and the Rat also has better archer positions.