How to modify the appearance of a unit

[Warlord]

I want to replace the helmet,shield a unit has with another shield and helmet that exist ingame(ex. replacing hoplon shields with roman shields in a greek spear infantry)Is this possible??What programs do i need to use??I am new to modding and it would help if you show me every step with details.I am not talking about creating a unit entirely from scratch but replacing the weaponry of the ones that already exist in the game

Also i want to know how i can make shield symbols.

[Lion.Kanzen]

All you need is know the name of props. In xml file unit ( in actor folder)

Edited April 1, 2015 by Lion.Kanzen

[Warlord]

and another thing how can i change the helmet crest in a unit?

[Lion.Kanzen]

and another thing how can i change the helmet crest in a unit?

is part of helmet, you can't, is a single piece with the helmet Edited April 1, 2015 by Lion.Kanzen