Hello,

Here is a topic that should interest you:

https://plarium.com/forum/en/stormfall-age-of-war/game-discussion/55010_bg-reward-record/

In my opinion, it would have been a better idea to keep your battlegrounds at level 70-80.

That's enough for Class IV hero equipment, and you could have more easily converted your units into low value units.

Read this guide for more information.