The civilization bonus of Bengalis where elephant units absorb 25% of the bonus damage is implemented in the Community Patch by increasing the armor of elephants in the special classes, such as elephant, cavalry or archers. The armor increases happen when reaching feudal or  when researching the corresponding armor technology. This way, I give the opponent time to research the corresponding counter unit upgrade. The following is a comprehensive list of all the changes.

Elephant Archers

Elephant archers have -7 cavalry archer armor, so keep in mind that when looking at the numbers

• Feudal Age: Elephant archers gain +1 cavalry archer armor for a total of -6.
• Feudal Age: Elephant archers gain +4 elephant armor