Star Wars Knights of the Old Republic II: The Sith Lords/Combat

Attack

 * Roll 1d20
 * Base

Dual Wield Penalty

 * Small Offhand Bonus 2
 * Small Offhand Bonus 2

Ranged

 * Close Proximity Ranged Bonus
 * melee on ranged

Attribute modifier

 * Player Modifier
 * or mod(ifier)

Effect Bonus

 * Battle

Defense

 * Base 10

Armor

 * Dex(terity) mod(ifier)

Feats and effects
Maximum ceiling 10 restricts the following:


 * and
 * and
 * powers
 * powers
 * Item Defense bonuses
 * Item Defense bonuses

The following are unrestricted:


 * and
 * modifier when added by
 * Item Defense bonuses restricted by damage type or enemy alignment
 * Item Defense bonuses restricted by damage type or enemy alignment

bonus is listed separately as feat

Damage

 * Weapon damage and bonuses of same type
 * Bonuses of different damage type(s)
 * mod(ifier)

Misc. effect damage

 * Battle

Then damage, none are multiplied by a critical hit

Damage Immunity
Sums as expected, despite what descriptions may display.

Shields
../Arms/ and ../Shields/

Toughness
or before Improved

Damage Resistance
Only highest value counts