This is not a full conversion, rather it re-envisions Orcs and Humans to more resemble Warcraft 2. It provides a balanced melee environment that allows players to take full advantage of naval tech-trees. It also adds a hyper-aggressive race called the Lost that are unique in the RTS realm.
Credits: The following websites are where I found my custom resources:
thehubb.co.uk, wc3campaigns.com, wc3sear.ch --> hiveworkshop.com
The following people are those responsible for the above listed websites, and creators of custom material I've used:
Blizzard
http://www.moddb.com/mods/beyond-the-throne-tides-of-darkness