Your starting statline is going to look a lot like this:
|WS| | |BS| | |S| | |T| | |I| | |M| |
|3| | |3| | |3| | |3| | |5| | |7| |
Upon becoming experienced in an aspect, your statline will change to:
|WS| | |BS| | |S| | |T| | |I| | |M| |
| 4| | | 4| | |3| | |3| | |5| | |8| |
And after becoming an exarch, the statline becomes
|WS| | |BS| | |S| | |T| | |I| | |M| |
| 5| | | 5| | |3| | |3| | |6| | |9| |
Plus an extra wound, and an extra attack.
These basic statlines also will include whatever bonuses you've picked up along the way.
To break down the stats themselves:
WS - Weapon Skill.This shows your ability to hit an enemy unit in close combat.
BS - Ballistics Skill.This is your accuracy with ranged weapons and wychfire spells.
S - Strength.In combat, this affects how grievous of a wound you can inflict on your enemies. Ranged weapons will often have a Strength Profile of their own.
Outside of combat it affects your ability to lift, push, pull and carry objects and weapons.
T - Toughness.In combat, this affects how easily you can shrug off or diminish wounds which have been dealt to you.
Outside of combat, it affects your healing speed and the level of debuff you will get from Aggrieving Terrain modifiers (Heat, Cold, Sharp Scree, High Gravity).
I - Initiative.This is a blanket term for Intelligence and Agility. Basically how quickly you can act in situations.
In combat it affects your ability to sense hidden enemies, your ability to chase down fleeing enemies, and the Turn order for attacks.
Outside of combat, it affects your movement and climbing speed, and the how well you navigate Difficult Terrain.
M - MoraleThis affects your general combat mindset- how easily you can deal with the stresses of battle, and the ability to use Psychic Powers as a Warlock or Seer.
Various Injuries, Gruesome Injuries on squadmates, Deaths of squadmates and Pinning fire will result in you needing to take a Morale Check
ARMOR MODIFIER
Armor comes in values from 2+ to 6+
As your armor value increases, so does your ability to deflect or reduce the effect of wounds.
Weapons all come with an innate
'AP' value, from 1 - 6.
If a weapon's AP is equal or less than your armor value, the armor is ignored and damage happens as normal.