Object\AmericaVehicle.ini를 열고 AmericaTankPaladin을 찾는다.
design으로 검색하면 아래쪽에 WeaponSet이 있다.

  ; ***DESIGN parameters ***
  DisplayName      = OBJECT:Paladin
  Side = America
  EditorSorting   = VEHICLE
  TransportSlotCount = 3                 ;how many "slots" we take in a transport (0 == not transportable)
  WeaponSet
    Conditions = None
    Weapon = PRIMARY PaladinTankGun
  End

주무기의 이름은 PaladinTankGun이다.
Weapon.ini를 열어서 PaladinTankGun을 검색한다.

Weapon PaladinTankGun
  PrimaryDamage = 60.0
  PrimaryDamageRadius = 5.0
  ScatterRadiusVsInfantry = 10.0     ;When this weapon is used against infantry, it can randomly miss by as much as this distance.
  AttackRange = 150.0
  MinTargetPitch = -15                         ; we may not target anything outside of this pitch range
  MaxTargetPitch = 15                          ; ditto
  DamageType = ARMOR_PIERCING
  DeathType = NORMAL
  WeaponSpeed = 300                           ; dist/sec
  WeaponRecoil = 5                            ; angle to deflect the model when firing
  ProjectileObject = GenericTankShell
  FireFX           = WeaponFX_GenericTankGunNoTracer
  VeterancyFireFX  = HEROIC WeaponFX_HeroicGenericTankGunNoTracer
  ProjectileDetonationFX = WeaponFX_GenericTankShellDetonation
  FireSound = PaladinTankWeapon
  RadiusDamageAffects = ALLIES ENEMIES NEUTRALS
  DelayBetweenShots = 2000               ; time between shots, msec
  ClipSize = 0                    ; how many shots in a Clip (0 == infinite)
  ClipReloadTime = 0              ; how long to reload a Clip, msec

  ; note, these only apply to units that aren't the explicit target
  ; (ie, units that just happen to "get in the way"... projectiles
  ; always collide with the Designated Target, regardless of these flags
  ProjectileCollidesWith = STRUCTURES WALLS
End

AttackRange를 적당한 값으로 변경하면 된다.