Alright, hi TF2Maps.net. I am DPErny, and I made the forementioned plugin.
The plugin, in its original version, restricted the classes to Bow/Jarate Sniper, Fist/Sandvich Heavy, Healgun/Bonesaw Medic, and Flaregun/Fireaxe Pyro. The plugin was poorly made, worked poorly, but it was fun. We played it primarily on Redfort. It fell from disuse a few weeks later. I left it alone. It lacked variety that TF2 players wanted, and wasn't really true to medieval times.
But the recent updates have created renewed interest in Medieval Fortress, however, so I am rebuilding the plugin from the ground up. It will be neater and cleaner. The plugin will ship with four classes: Sniper, Heavy, Demo, and Soldier.
The Sniper is the ranger class. He is not allowed his SMG or Rifle. He is the only class with long range capabilities. The Heavy functions as the plugin's Tank. He's big and slow. His ability to drop Sandviches also makes him a good healer. The plugin will allow Sandviches to recharge more quickly. The Soldier is a powerful close-range melee class, and also has access to the Buff Banner, making him a powerful team player. The Demo is by far the central warrior class. His Eyelander and Targe make him a staple of Medieval Fortress.
I feel that the plugin is ready to move BEYOND Redfort and into it's own specialized maps. If you are a bored mapper and think this is an interesting project, contact me through the provided email or through the ubercharged.net forums and I can give you more specifics.