In Alien RPG, if you're using a ranged weapon at Adjacent range, you use (Strength + Close Combat) instead of (Agility + Ranged Combat). A weapon entry on the character sheet requires that you configure either Close or Ranged for that weapon. When you actually use that weapon in play by clicking the dice roller button, it asks you to select a range, but regardless of your choice it uses the skill configured for that weapon. The range I select when using the weapon should automatically use the correct attribute and skill combination.