Emperor Castaigne said:

Weapon Specialists get the Favored Basic Weapon as part of their spec. Heavy Gunners are the same with the Favored Heavy Weapon.

Plushy said:

Yes, they do get that, but it costs equipment points to pick a Favoured Weapon in the first place. Let's see what the Beta Update has to say:

Favoured Weapons (page 33): Add the following section after the Equipment from Doctrines section: “Favoured Weapons: Each regiment has weapons that its members prefer to wield, or simply have a natural aptitude for. Each regiment may choose one Basic weapon and one Heavy Weapon to be their Favoured Weapons, these weapons mat (sic) not have an Availability higher than Very Rare. Members of this Regiment gain a +10 bonus on all Logictics (sic) Tests to obtain those weapons and ammunition for them.”

Table 2–6: Additional Standard Kit Items (page 34): Add the following two rows to the end of the Table 2–6:
Favoured Heavy Weapon. Add one Favoured Basic Weapon - 10 - May only be taken once.
Add one Favoured Heavy Weapon - 15 - May only be taken once.

The way you seem to be reading it, you get a free pick on one Heavy and one Basic to be Favoured and can pick additional ones for a price. The way I'm reading it, that first paragraph is just describing how it works, and you have to pay equipment points for any Favoured Weapon picks and are limited to one of each.

 Re-read the errata, just above that it says you get to pick one of each for free.  if you want to pick an additional one it costs the extra points.  

Favoured Weapons (page 33): Add the following section
after the Equipment from Doctrines section: “Favoured
Weapons: Each regiment has weapons that its members prefer to wield,
or simply have a natural aptitude for. Each regiment may choose one
Basic weapon and one Heavy Weapon to be their Favoured Weapons,
these weapons mat not have an Availability higher than Very Rare.
Members of this Regiment gain a +10 bonus on all Logictics Tests to
obtain those weapons and ammunition for them.”

Solarisjock said:

Yes, I know what it says, I included that section in my post. I still only think that's only a description of the Favoured Weapon effects and that you have to buy it using equipment point.

We've both read the same section, but we have differing interpretations of it. The best way of solving it would be to get some developer in here to resolve the matter for us. Unless the developers can't agree on it either, then we're doomed.

 Those point costs go onto the table 6-2, Additional Standard Kit Items.

The pre-made regiments have chosen their Favored Weapons and still bought 30 points of gear.

A regiment doesn't need to spend points simply to have Favoured Weapons. Indeed, all regiments have (chosen at regiment creation) a basic weapon that is considered Favoured, and likewise for a heavy weapon. You can spent kit points to give an example of the regiment's Favoured basic (and/or Favoured heavy) as standard kit for a squad. This will ensure the PCs have an example of said Favoured weapon regardless of what specialisations the players are playing, and fluff-wise might indicate that this particular regiment considers the Favoured weapon in question so important that they go the extra mile to ensure that every squad has one. Ordinarily, the only way to get access to Favoured weapons outside of requisitioning them is to play as a Weapon Specialist (who can select the regiments Favoured basic weapon as part of his specialist equippment) or a Heavy Gunner (who can do likewise with the regiment's Favoured heavy).

CaptainTrek said:

This man has the right of it. 

Alright, alright. I'll bow to peer pressure.

One suggestion for your Storm Trooper build, switch out the regular Carapace armor for Stormtrooper Armor, it already includes a Micro-bead, at least if you go by the more detailed description of the (still Very Rare) Cadian-pattern “Kasrkin” Storm Trooper Carapace in Dark Heresy: Ascension. That way, you won't have to spend points on the microbead, leaving you with 5 points to spend on something else. My personal suggestion: a Grapnel & Line.

I'm having trouble imagining a situation in which you think to yourself: "Man, bringing this grapnel gun sure was a mistake."