Bwain - It seems that my back-up was somehow compromised thus i had to re-instal everything.

Now I', trying to add those units one at a time, instead of batches and so far so good. I'm able to play them in the Custom battles now. Hopefully, there should be no more error in the Campaign Map as well. One quick question though, in model_battle i placed the pathway data>sprites> but in my data folder its data>SPRITES, is this case sensitive?

Regretably, I was not able to find out the root of my problems. I just hope its smooth sailing from here on. Thank again for all the help!