Drats, I've reached my character limit on the guide.
Time to link Part two to this post then...
PART TWO
Finally:
Vampires. Ah yes, vampires. One of the primary themes of LA Ulm. Baalz has recently written a stellar guide to vampires (
Here), but I'd like to go abit into Counts and how it all fits together with the rest of Black Forest. LA Ulm has the best capacity to carry out a massive vampire swarm: every one of those counts you've built can summon thralls (though do it with blood boosters for more thralls). So you not only have NATURAL access to all forms of vampires (with a pretender to kick the chain off), but you've got a great blood economy to boot. Forget 50 thralls as a minimum, you could max out your Counts and Lords with hundreds upon hundreds of thralls...every turn. LA Ulm transitions into an unassailable juggernaut once midgame sets in and you start summoning thralls (and the other blood goodies), you won't have to worry about practically anything. LA Ulm has swarms of inquisitors (who you should've been massing for research in non-cap forts) to keep up dominion inside your territory, and as long as you are fighting in your own dominion, it's suicide for practically anyone to attack, with SCs or Armies. You could swarm ANYTHING with hundreds (or thousands, depending on how late the game is) of vampires with the usual battlefield spells up. That doesn't include your Illuminated One Communions and Iron Priests (casting all those lovely Earth Buffs and Spells. Army of Gold/Marble on a Vampire Horde? BRILLIANT!).
In summary: When playing Ulm, get into the World War One mindset. Think trench warfare. The goal with LA Ulm is Bite and Hold. You're able to hold any province you take easily: with mass inquisitors to change dominion in a blink of an eye, and swarms of vampires to defend them. Slow advances are preferable to all out attacks. The latter will leave you machine-gunned in No Man's Land. The only problem with LA Ulm is difficulty spreading dominion. You've got great inquisitors: but no stealthy preachers or blood sacrifices (unlike LA Marignon or Mictlan). You can spread dominion with massive numbers of stone idols and temples and juggernauts, but it is much more difficult (leaving your vampires on a primarily defensive role). On the other hand, you've got an innate access to vampires (so you can field far, far more), and your national armies and mages can carry out your carefully planned assaults on enemy dominion. Bite and hold, mate, bite and hold (and yes, it is a pun).
In conclusion: LA Ulm is one of the under appreciated underestimated powerhouses of the Late Age. There are too many things going for them for their weaknesses to stand out. A solid expansion, impressive magic diversity, cheap research overall, stealthy communions and spies, solid national troops, plenty of chaff, and an extremely strong blood economy all come together to form a nearly impregnable and invincible dreadnaught of a mid/endgame.