I have no experience with any rpg game and the rulebook doesn't clarify how you are to get a lot of the stats you need in order to get playing. Here are my questions.

How do you get the Armour value? (Where it says something like "Head (1-10_)Type:"

How does experience and aptitudes work? (This is especially confusing)

How do you get your movement(s)?, so half, full, charge, and run

In turn.

Armour Value is the AP of worn armour. Basically, you take the highest listed AP value of any armour you're wearing on a certain body part and that's your armour on that body part. The armour's description usually also includes which body parts it covers.

Aptitudes are basically there for making buying certain skills and talents easier for certain classes. For example, the Priest's aptitudes tend to lay towards social options and so priests can buy these skills and talents for less experience than a class that doesn't have those.

The idea is basically that one or two aptitudes decrease the XP cost of a certain skill/talent if you have the relevant aptitudes for it. Check page 100-105 in the core rulebook for a more in-depth explanation.

Experience is used to buy skills, talents and boosts to your characteristics. Not much else to say about that.

Lastly, IIRC it's your Agility Bonus (The tens digit of your Agility characteristic) x1, x2, x3 and x6, for Half, Full, Charge and Run, respectively. So if you had 35 Agility (or any other value from 30 to 39) your Agility Bonus would be 3, and so your movement stats would be 3/6/9/18 for Half/Full/Charge/Run, respectively.

The same way, having your Agility at 40 and up to 49 would make your Movement stat 4/8/12/24. That value is in meters, by the way.

Any questions?

EDIT: Cleaned it up a bit, since I'm no longer on a phone.

Just wanted to add that Aptitudes usually come from the speciality of the character and the regiment. They can't be bought with experience nor can be gained during gameplay (unless you change to an advanced speciality).

Experience is gained after every mission. The GM decides how much experience you gain depending on what you did, how did you roleplay, if you accomplished the mission objectives, and so on.

Each increase in a characteristic, a skill or a talent costs experience. There are some tables in the book, as ExoSaeptus explained, where you can see how much experience does an improvement cost, depending on the level of the improvement (Tier 1, Tier 2, ...) and if you have 0, 1 or 2 Aptitudes related to the characteristic/skill/talent you want to improve.

the rulebook doesn't clarify how you are to get a lot of the stats you need

Armour: p195

XP: p100-105

Movement: Table 1-4, p33