There's not just a sword (blade) with holy weapon and other interesting properties you can get easily in this (2nd) mission but also and notably a very complicated, cool & awesome scripted procedure (with an equally cool guide) to get an even more potent AoE (mostly) one-shot weapon against the undead (with limited charges so to be used wisely), one of the ingredients for which also functions as a "sort of" funny lesser weapon, in addition to several holy water potions, one of which again in...
Yeah this FM was pretty disappointing after the first mission, I ended up dropping it because I thought destroying the relic would kill all the undead to make the second objectives easier but it didn't. There are too many damn undead all over the place and you don't even get to have your sword to fight with, even without holy water you could at least knock out zombies and just avoid getting toomclose to them so they don't get back up.
Thank you for your comments! Rating something is a very subjective thing. Playing this in say 2001 I'd probably give it at least a 9 as there was nothing quite like it then. But then how can we distinguish between things? My rating wont damage this classical masterpiece.