Few thoughts/suggestions for facebook classic.
Two of the forts should be shut down for now. There are not yet enough active large guilds to justify 5 forts. If you have a decent number of players on and are holding a fort no one bothers to attack you, they just go take a different fort and idle there. When guilds are often holding two forts at once, that's a good sign there are too many. I would say keep castle, mod, and swamp, and close the others for now and open them later.
As Ares said, we could use some active GPs. I don't think I've ever seen a GP on tag. And an easy way to find and contact staff that are online would be nice.
And again, the blocking in forts is a problem. Especially when players from iphone can open their chat or map to intentionally lag themselves and block a door. It wouldn't take much work to make some minor revisions that would greatly improve gameplay. For instance, I threw this together in paint in about 30 seconds, but Mod would be much more fun like this.
Castle shouldn't warp the attacking player 500 miles away after they die. Swamp upper level entrance should be widened just a bit.