I have just started playing through Arielus's 'Golden Episodes' mod. Seems interesting so far, kinda like a mix between BJ Rowan's excellent mod 'Totengraeber' and the 'Lost episodes'. Word has it that Arielus makes some of the best maps in the community and I'm interested to see what they're like. I 'll give an update when I get a little further through them.
Episode 3 Level 2