Javier has uploaded to the THW Yahoo! Group a set of conversion guidelines for adapting Warmaster armies to Two Hour Wargames' Warrior Heroes big battles system.
The MS Word document also includes house rules for shieldwalls, drilled/veteran/stubborn troops, etc.
"I started this file months ago and I was waiting to finish it to upload it," Javier says, "but as I won't in a near future, I decided to upload it now and let it opened for anyone to finish it, even by myself later on."