The developers weren't kidding when they declared that this was, and I quote, "a very challenging campaign"! Let's add DAMN NEAR IMPOSSIBLE, even on Easy difficulty, at least for this admittedly mediocre-at-best strategist. Let me qualify things a little better, then...
This is the final of the DLC campaigns, and to say that the "challenge" factor goes up a tad between this and the ones immediately before it is something of an understatement. Let me put it this way...pretty much all the missions prior to this pack, I was able to complete on the first, second, maybe at worst THIRD attempt, and on NORMAL difficulty no less. I've just failed Mission 1 of this DLC more than ten times in a row, and the latter half of those were on EASY difficulty. A mild discrepancy in difficulty there, methinks?
The most "tragic" thing here, though, is not that Mr Stupid Pants McReady can't complete a heavily strategy-based game - no earth-shattering revelations there - but rather that this DLC finally lives up to many of the criticisms people had levelled on this overall game...criticisms which, up until this particular DLC, I would have passionately argued against. Which isn't to say that Space Hulk was ever a "perfect" game, but by and largely the balance between strategy and luck (read: fairness and unfairness) was a solid one. The very first mission of Harbinger of Torment unfortunately escalates things to the point where even the teeniest, tiniest mistake - or worse yet, just a brief spot of bad LUCK, something well beyond the player's control - pretty much spells the end of the mission. Now, this kind of unforgiving nature might be acceptable if it didn't occur a good thirty minutes or more into a mission which was going perfectly well up to that point. Prior to this, the missions in the main game and earlier DLCs were designed in such a way that one or two casualties were not only wearable, but indeed EXPECTED. Lose just one marine in the first five rounds of this 'un, and you may as well just start all over again. It's THAT pedantic. Oh well...at least I can say I "beat" the main game, and three (count 'em, three!) DLC campaigns...but alas, no perfect closure for Monsieur McReady before he moves on to the supposedly superior (we shall soon see!) Space Hulk: Ascension. Such is life.
Why, then, am I giving this a thumbs-up, you ask? Well, because I figure that SOMEBODY, SOMEWHERE - at the very least one or two people on the development team itself - must have actually managed to get through this DLC. So if you're the kind of somebody who likes a decent challenge - I mean a REALLY ♥♥♥♥ING DECENT challenge - then this may be one of the best purchases you'll ever make in the magical world of Steam. And failing that, if you simply get this DLC more or less for "free" by buying one of packs with all the campaign DLCs in it, you're not exactly gonna lose out that way either, are you? Just don't bother buying the ♥♥♥♥er by itself unless you are EXTREMELY sure of yourself, 'cause you're gonna require strategy and patience galore to get all the way through this one.