My favorites used to be Tanith first and only but at the moment my favorite is the Valhallan 597th other regiments i like include The Moradrian Iron Guard, Armageddon Steel legion and the Catachans

 I do like the Catachans quite a bit myself. Granted, they can look a little goofy en masse, but I really like the idea of small squads of them roaming through all the nastiest jungles the galaxy has to offer and silently stalking their enemy. Plus they're bad ass enough that they don't even need to wear armor. And how many other regiments have veterans that have killed tyranids with their bare hands?

Of course, the Valhallans are pretty great too, especially Commander Chenkov. He so perfectly exemplifies the Imperium's attitude that Guardsmen are about as valuable as the las guns they're carrying…actually, scratch that. Guardsmen are  less valuable than las guns. You can recover a las gun from a corpse and pass it on to the new recruits, can't do much of anything with a corpse. The Valhallans put the grim in grim dark.

Savlar Chem Dogs, scum of the universe that will fight for whatever they can steal, even if it means hacking gold teeth out of someone's face with a bayonet and kept motivated in some sort of vague direction towards the enemy with a steady supply of combat drugs. Plus they're a politically incorrect, funny anacronism from the past you just couldn't sell in a PG13 games store anymore :D

I also really like the Elysian drop troops, having known a few para's in the past, they're all fairly much unhinged at some level.

The Tallarn Desert Raiders. They survived a full-out EXTERMINATUS of their planet (well, not technically Exterminatus, but the Virus bombing had the same effect in that it destroyed the ecosystem of the planet and reduced the surface to endless desert), rose up from underground bunkers, and then proceeded to have the galaxy's largest tank battle ever, single handedly beating back the Iron Warriors. They are very resourceful (such as two regiments switching to the use of horses and camels when their vehicles run out of fuel to attack the enemy), and can pretty much do anything, from light infantry to mechanized warfare to static trench warfare. They are quite well disciplined and very zealous; thinking of a Tallarn charge lead by a screaming preacher with an evicerator brings a smile to one's face. Plus, I love the old Arab style of their regiments.

Dulahan said:

He didnt say anything about us not having the possibility to build your own regiment.

Sister Callidia said:

No, but my hope was regiment wasn't structured or even really developed.  as I am hoping that when you make your characters you do that completely agnostic of regiment, then go through some sort of 'tree' to collectively create the regiment you're all part of in a way similar to how Rogue  Trader creates dynasties.

Now, this doesn't rule out some pre-made regiments of the big names and FFG's created version being done.  But still, that statement makes it less likely.

Also, a big shame they haven't previewed that new regiment!  Remember a couple years ago when someone decided to make a Storm Wardens army (company?) for charity?

If nothing else they could come out with a suplement such like the did with DW in which you can create your own regiment

mrady said:

To be fair.  My objection is more that I don't want the regiment to be so important that it's anything but a background element.  The more 'splatty' the regiments are, the more in the forefront they are.  Though obviously it's a big deal for FFG, means they can get more money by including regiments in new books.  There's also my worry that regiment being too major a thing could imply 'mixed' units.  Which is also something I really was hoping wouldn't be the case, I really wanted a down and gritty part of a regiment thing, not a mixed unit special forces thing.  That's what Deathwatch is for, if you ask me.  Sure such a thing doesn't REQUIRE you to play mixed regiments, but let's be honest… you'd have to have a very tight or story driven group of players to convince people to all play the same regiment without something like this.  There'll always be that one guy/gal who HAS to play their favorite regiment.

For me the ideal would be something like:

Orgin world:   Hive - BS and Fel bonus and extra talents in those sorts of thing.    Feral - Str, Toughness, and/or WS bonuses.  Extra skill options or certain starting skills.  Essentially stuff to represent the sort of person that comes from each world and ends up in the Guard.

Regiment Age - Not sure what sort of bonuses here, but maybe something.  Just founded, decade, centuries, etc.  Possibly something like the quality and sort of equipment you have at start and get access to.  (Just founded?  Shiny new stuff, but very uniform…  OLD regiment?  Not so good of equipment in general, but access to some 'looted' special stuff or something else to make up for it.  Essentially, like the Ship Point/Profit Factor split in Rogue Trader)

Regiment Specialization - Drop Troops?  Armored?  Mechanized Infantry?  Heavy Infantry?  Stealth?  Etc etc.  Each one having some set skill bonus(es?), or a skill tree of 'elite advances' all PCs have access too.   Basically this is the flavor that helps makes your regiment distinct from others of your world.  Compared to Origin world which is what distinguishes you from other Guard Regiments of the same specialty.

Probably a couple other options somewhere to add more variety.  But basically a framwork like this. 

Perhaps options for prefered enemy - such as orks or tyranids - and maybe rare equipment employed by the regiment?

CapitolImperialis said:

Preferred enemy might be a great option for an older regiment, while a new one… maybe less chance (Though a regiment founded from a world that sees frequent Xenos Attacks or Rebellions could change things)

Such as Valhallan regiments automatically reciving prefered enemy against Orks?

I also hope there are special rules relating to the background of the regiments, such as Mordians getting some sort of mechanized infantry bonus (cheaper/more experienced Chimeras?) and maybe some extra bonuses against Chaos, Valhallans some bonuses against Orks and winter warfare, Vostroyans urban combat and winter combat bonuses, Tallarn desert combat and armour and/or light infantry bonuses, etc. Perhaps if there is a build-it-yourself regiment, when you choose the regimental background and whatnot, you end up getting bonuses dedicated to the background of the regiment/regimental homeworld. This would be fun, especially seeing someone re-creating the Plovian 14th (sp?) (which according to fluff is composed reminants of Elysian and Catachan regiments which specialize in airborne jungle warfare).

The Terrax Guard

followed by the Steel Legions of Armageddon.

First up, are the Tanith First and Only.  Awesome scouts, great snipers. 

Second, I like the Valhallans.  If ever the Space Wolves need back up from the Guard, I'm sure that the Valhallans are the only ones that will feel at home amongst the Wolves.

And third, I'm not sure they qualify as a regiment, but I'd toss out Schaeffer's Last Chancers; the Dirty Dozen of the grimdark future.

MKX said:

I like the Catachan because of the vietnam/ desperation feel about them. fighting in a dense and dangerous jungle against unseen foes.

But may be I like the old deathworld rules even better: No Commissars: What do you mean the commissar killed our sarge because we are retreating? Nobody touches our sarge. Raagh