Experimental Wars is a mod which completely changes the gameplay of the original with a new way to fight the war. With Experimental Wars, you must rediscover the game and forget the fine details of the original game.
In the 1.92 you discovery the naval bases and the news 3 engeneer ( air / land / sea ) and the new naval ressources system.
But in the 1.95 you will discovery the Heroes Commanders, those one can come in the game in the tech 1.
Have good game :)
If you want more informations come in the mod's topic :)