weapon.extremeRange = 6;
    public static WeaponType createCLArrowIVSystem() {        WeaponType weapon = new WeaponType();        weapon.name = "Arrow IV";        weapon.setInternalName("CLArrowIV");        weapon.addLookupName("CLArrowIVSystem");        weapon.addLookupName("Clan Arrow IV System");        weapon.addLookupName("Clan Arrow IV Missile System");        weapon.heat = 10;        weapon.damage = DAMAGE_ARTILLERY;        weapon.rackSize = 20;        weapon.ammoType = AmmoType.T_ARROW_IV;        weapon.minimumRange = 0;        weapon.shortRange = 1;  //        weapon.mediumRange = 2;        weapon.longRange = 6;        weapon.tonnage = 12f;        weapon.criticals = 12;        weapon.bv = 171;        weapon.flags |= F_ARTILLERY;        return weapon;    }