How can I replace default Paladin with Arthas?

Hello,

I've been trying to find a way to replace the normal human hero Paladin (used in ladder games) with the campaign hero Arthas. I want to be able to create Arthas and have him has my hero in Ladder games, melee and normal games, or whatever you might call them.

I've looked at the World Editor and to have Arthas through it, I would need to create a new Use-Map-Setting customized one. I want to know if there is a way to change the way the game works that the Paladin has Arthas's model, icon, and if possible, sound set. I'd like this for Thrall, Jaina, undead Arthas, fancier Dreadlord, etc. but for now, I ask for help to achieve this.

Thank you,
kkj1116

Judging by how old this is you've probably realised it, but you can't actually change the models or edit anything that's used in online ladder games.

lol, you again

ladder games...

trolling or plain stupid?

and you

Aye.

BUT make custom map -> widgetise -> Use Local Files -> export SLK(s) -> drop in correct place?

Can't remember if unit data is in SLKs or not.