How to make longer lance cavalry..?

Hi to all..

I am totaly new for modding issue. I wanted to make cavalries that have longer lances like pikes. I think the look cool like medieval knight..:beam:

I just learned how to mount and dismount units, I tought if a make a mounted pikeman I will have a long lance cavalry...:idea2:

I did it.. and the result is....

https://i130.photobucket.com/albums/...evymounted.jpg

Can any one help me for this problem..?

please share any info or advise..

Thanks in advance.

(sorry my English)