Chingis Han

Yes it is pronounced "Chingis Han"  by the mongols and not "Ghengis Khan".

Chingis Han had sent the ruler of the Khwarezmid Empire, Shah Ala ad-Din  Muhammad , a caravan for trade along with 3 ambassadors. 

But foolish Shah Muhammad looted and executed all the personnel of caravan and then beheaded one of Han's ambassador and burned beard of other two, sending them back as insult. Mistake .... big mistake .

Infuriated, Chingis Han desires revenge. His tactics : strike fear in heart of people so that they surrender out of fear.  Play as Chingis Han, witness his tactics to spread terror as he destroys Mosques and towns of Khwarezmid Empire and use them as Horse Stable.  BECOME  HIS  WRATH  which will strike fear in hearts of people forever.