I've recently been working a campaign and this is only a side project so it won't be as good as it would be if I consentrated on it. It's been playtested by some friends of mine and we've seen that it is somewhat challenging and fun if you know what to do. It's all about water stragey and a basic destroy your opponent's fortress to win. You can either do 2 vs 2 or a free for all.
Also, you'd like to revise this scenario to make it better or add some things, please make sure to give credit to Silent_Rogue in which is the name I use besides on here.