The file you are after would be:
dgdata.zip\lua\common\ArmorTypes.lua
If i am reading it right: It looks like they changed everything to 1 except structures take 2.0 from artillery?
For what damage the reinforcements do i think you have to go in each's bp file:
example: dgdata.zip\units\Reinforcements\RGiant\RGiant01_unit.bp (text file) and find the section on thier weapon
Weapon = {
{
BallisticArc = 'RULEUBA_None',
CameraShakeDuration = 0.2,
CameraShakeMax = 5,
CameraShakeMin = 0,
CameraShakeRadius = 50,
CanDamageReturn = true,
CollideFriendly = false,
Damage = 500,
DamageAreaMult = 1,
DamageDelay = 1.6,
DamageFriendly = false,
DamageRadius = 5,
DamageType = 'Artillery',
DisplayName = 'Sword',
FireTargetLayerCapsTable = {
Land = 'Land',
},
FiringTolerance = 5,
IgnoreOpportunity = true,
IsMelee = true,
Label = 'MeleeWeapon',
MaxRadius = 8,
RateOfFire = 0.2,
SlavedToBody = true,
TargetCheckInterval = 2,
TargetPriorities = {
'STRUCTURE',
'ALLUNITS',
},
TargetRestrictDisallow = 'UNTARGETABLE',
TrackingRadius = 12,
TurretBoneMuzzle = 'sk_Giant_Turret01_REF',
TurretBonePitch = 'sk_Giant_Turret01_REF',
TurretBoneYaw = 'sk_Giant_Turret01_REF',
TurretPitch = 0,
TurretPitchRange = 180,
TurretPitchSpeed = 360,
TurretYaw = 0,
TurretYawRange = 60,
TurretYawSpeed = 360,
Turreted = true,
WeaponType = 'HugeClub',
},