MikroTik

I use MikrotikOS v2.9.11 and i want to port forwarding to a game called "Warcraft Battlenet".

In this game i want to host a game so other player in battle net can play in my host game....but until now i cant figure it out how to port forwarding with this mikrotik...is there any one can teach me how to use it (port forwarding) with MikrotikOS v 2.9.11

Thanks before...

actually i already read this document so i hope is there sum1 to give me an explanation or an example....plz help me indeed thx

the link includes an example and a picture.