Replacing Models in War3.mpq

[Chosen One]

First of all Hello to all the readers of this message.
I'll get directly to the problem:
I'm replacing models in the War3.mpq , War3x.mpq and so on , so far i managed to swap a few models(example: Replaced Kiljaeden.mdx and Kiljaeden_Portrait.mdx with some outside the mpq models but renaming the new models with the names of the old ones.)
The problem is this: I tried to replace units\undead\skeleton\skeleton.mdx with a model , but whatever i do the model remains the same meaning the old skeleton.(ex: replaced Skeleton.mdx with ball.mdx , but in warcraft i get the old skeleton model)
My Question is: How can i fix this , for Warcraft to see the new Skeleton.mdx because other programs like W3 Viewer , Mago's Model Editor are detecting the new model while Warcraft or World Editor gives me the old model.


ThankYou in advance!!

P.S: THe program i'm using to replace the models is MPQmaster.

 

[Mecheon]

That's grounds for getting banned from Battle.Net, you are aware of this?

Anywho, check other mpqs, such as patch, incase they updated the skeleton model in them

 

[HappyTauren]

there is skeleteon model in War3x too, u gotta replace it too, but this is useless.