In Fallout, Fallout 2 and Fallout Tactics, tagged skills increase at double the rate of an untagged skill (i.e. One skill point translates to a 2% increase in the skill). In Fallout 3 and Fallout: New Vegas however, a tagged skill only gives a 15 point boost. Tag skills are a vital part of the Fallout universe because they essentially dictate what type of character you will play. A fighter will tag combat skills whereas a diplomat may choose speech, barter and science. A well-rounded character usually includes at least one diplomatic and one combat skill.