Obsidian implemented this feature as a direct response to the popularity of the Weapon Mod Kits mod for Fallout 3. Weapons can have a maximum of three attached mods, and they cannot be removed once placed. Karma in Fallout: New Vegas has less of an effect than reputation, which is the primary factor affecting how people react.Ī modding feature allows for the modification of weapons by adding scopes, extended magazines, silencers, and more. A high reputation with a faction or town may give certain benefits, such as gifts from the people who live there, while a low reputation may lead to hits being taken out against them. Reputation is a form of tracking relationships within the many factions and towns of Fallout: New Vegas, such as the NCR or Goodsprings. There is a Karma system incorporated alongside reputation system, similar to Fallout 2. The setting can also be changed to only show this cinematic viewpoint for the last enemy of a group.

One can choose to activate or deactivate a dynamic 'Kill Cam,' which shows one's success in combat in slow motion. The player character will take more damage in V.A.T.S. Melee weapons now have special moves in V.A.T.S., such as 'Fore!' for golf clubs, along with special Unarmed moves such as 'Ranger Takedown.' cost Action Points and one can target specific body areas for attacks to inflict specific injuries. Use of one's weapon can be seen in slow motion and greater detail. While using V.A.T.S., the otherwise real-time combat is paused. The Vault-Tec Assisted Targeting System, or V.A.T.S., is an active pause combat system implemented in the game.

Main article: Vault-Tec Assisted Targeting System

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