Sneak Attack Critical

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A Sneak Attack Critical occurs in Fallout 3 and Fallout: New Vegas when attacking while [HIDDEN]. Successfully hitting the target will result in a guaranteed critical strike unless the weapon does not allow critical hits.

Notes[edit | edit source]

  • As long as a green [HIDDEN] message is on the screen, any shot fired, in real time or in V.A.T.S., will result in a critical hit. Free-hand shots will result in criticals as well, which is especially useful with low-spread weapons like the sniper rifle or scoped .44 magnum when targets are too far away to get a good percentage in V.A.T.S.
  • Even if the message states [CAUTION], or anything for that matter, you will score a sneak attack critical as long as you are hidden to your target. This even applies when they are engaged in combat with your companions.
  • CRIT DMG: Is the amount of damage that is added when you score a critical strike. The more specialized Sneak Attack Critical deals two times the total damage you would deal with a critical strike. Example: If a Lincoln's repeater would deal 100 damage in a critical (50 regular DMG, +50 of the critical DMG), in a sneak attack critical it would deal 200 DMG. This final 200 DMG considers an opponent with no DR.

(Loud) Silent Kills[edit | edit source]

  • In Fallout 3, it is possible to kill an enemy without alerting those around them if the "sneak" critical is also a one-hit-kill, even with loud weapons like the assault rifle. This is not the case in Fallout: New Vegas; surrounding enemies will be alerted, even if you use a silenced weapon.
  • Additional attacks after the first will not be treated as sneak attacks if queued in V.A.T.S. They will reveal the player's location to the target and possibly other enemies, presumably because the target then alerts their friends. This can happen with all weapons except silent weapons like the 10mm Silenced Pistol, dart gun, Perforator, or Infiltrator which have reduced chance to alert opponents.
  • One of the best weapons suggested for this kind of situation is the Victory rifle. Because the hit was a critical, the opponent will be knocked down and immobilized for a few seconds, giving you a chance to quickly deliver a few headshots or follow up with something powerful then hide until the others stop searching.

(Silent) Silent Kills[edit | edit source]

A Sneak Attack using a silenced weapon and a cloaking field.
  • It has been reported that all melee attacks are considered silent. However one should note the intimate proximity the player needs to be in to deliver a melee attack, the transition to [CAUTION] almost instantly proceeds to [DANGER] as the opponent is programmed to turn around and start moving in the direction of where the attack came from, looking for the enemy in [CAUTION] mode. The instant the enemy spots the player, it goes directly into [DANGER] mode which alerts all nearby creatures, even its own enemies. Occasionally, this will result in the enemy that spotted the player being attacked by another that was formerly unaware of the first enemy's presence.
  • Still, it is possible to get in 2-3 melee attacks without alerting the whole room. If the player sneaks up in back of one of the more lumbering creatures, it is possible it will not turn around fast enough. Note: It will take a Stealth Boy, Chinese stealth armor or the Silent Running perk with maxed skill to get that close.
  • This is quite unlike sneak attacks with a dart gun, with which a player can dart an enemy three times in one use of V.A.T.S. and then just sit still, hiding in the dark a good distance away, only under a temporary [CAUTION] while the enemy searches (slowly, with crippled legs) and then hopefully drops dead from poison, its death setting the player's status back to [HIDDEN]. Note: Enemies shot with a silent weapon still have some clue as to what direction the shot came from, and will search for the player.
  • The behavior of enemies seems to follow this pattern: if a noise is heard (e.g. dart impacting a wall), he/she/it will run to that location, patrol briefly then go back to [HIDDEN]. If the enemy is hit directly, he/she/it runs to the attacker's location and briefly patrol the general area unless the location is quite a bit away, in which case he/she/it will go for a short jog in that direction then return to [HIDDEN]. There is only one exception to the noise-rule: if it is made by an approaching grenade, the enemy will be alerted unless V.A.T.S. is engaged, in which case the enemy in question will scream about the grenade but it WILL count as a sneak attack (this has no effect however as grenades do not have critical damage). Sometimes, enemies remain in [CAUTION] for quite long even if the offender vacates the area.

Sneak Criticals & Slow projectiles[edit | edit source]

Certain weapons, like the microwave emitter, have relatively slow projectiles. Outside of V.A.T.S. this may sometimes cause an enemy to detect your presence before the shot reaches him, nullifying the Sneak Attack Critical bonus. For that reason, make sure you are close to your foe before trying to Sneak Attack Critical, if you are using these weapons.

Choice Weapons[edit | edit source]

The best weapons for sneak attacks are the ones with the highest critical damage bonus (affected by +50% damage Better Criticals perk). Here's a number of weapons with big bonuses. The number marked in bold is the critical damage when the Better Criticals perk is taken.

^ Damage calculated with Xenotech Expert

" Damage calculated with the perks Pyromaniac/Xenotech Expert/Both

Damage calculated if the weapon is fired outside of V.A.T.S., and all pellets make contact. (See below).

Sneak Attack Targeting in V.A.T.S.[edit | edit source]

For most creatures in the game, a sneak attack headshot, along with the Better Criticals perk, can be an instant one-shot kill on Normal difficulty or lower. (Even the low-damage dart gun can kill raiders with one sneak attack headshot ) In some cases, however, it may not be possible to line up a headshot on a target, due to target facing or an obstructed line of fire.

In these cases, even a sneak attack critical on an arm or leg can prove fatal to the target. Though results may vary based on the character's skills and perks, it is possible to shoot off a target's limb—an instant kill—with one shot from a sniper rifle. This may be a worthwhile consideration when chances to hit an appendage are significantly higher than head or torso shots.

Multi-Shot Weapons[edit | edit source]

Weapons that fire several "shots" at the same time, such as combat shotguns (and The Terrible Shotgun), Metal Blaster (from The Pitt), Protectron's Gaze, the tri-beam laser rifle (from Broken Steel), and Paulson's revolver (from Mothership Zeta) are some of the most effective weapons for sneak attacks (when done outside of V.A.T.S.). This is due to the fact that outside of V.A.T.S., each of the weapons' "shots'" critical damage is calculated individually. This aspect makes these weapons very effective in sneak attacks (and regular critical hits). With the right addition of perks, such as Better Criticals and Finesse, these weapons will be able to deal large damage consistently.

Calculating the Weapon's Damage[edit | edit source]

The Terrible Shotgun is the best example for this concept. While in perfect condition, and with a Small Guns skill of 100, the weapon deals 80 damage, with an extra 40 damage for critical hits. However, this weapon fires 9 pellets. Because of this, when the weapon is fired outside of V.A.T.S. and scores a critical hit, the critical hit for each pellet is counted individually. This means that (if all pellets make contact), the weapon will deal 440 damage (80 base damage, plus 9 extra 40 critical damages). In Sneak Mode, this damage is doubled, increasing it to 880 points of damage. And if the player has the Better Criticals perk, the damage will increase to 1240. If the player further increases the damage via a headshot, then that damage doubles again to 2480! High enough to kill any enemy in the game with a single shot.

In Fallout: New Vegas[edit | edit source]

It is worth mentioning that in Fallout: New Vegas, most multi-shot weapons have had their crit damage significantly reduced. As mentioned, in FO3, The Terrible Shotgun has a base damage of 80 and a crit damage of 40. Compare to the riot shotgun in FONV, base 75 damage, but only 10 crit damage. Thus, on a full 7-pellet-hit SAC, the total damage is 75 base + 70 critical = 145 total x 2 SAC multiplier = 290. This is still enough to kill most enemies outright, but is significantly less than the previously illustrated 880 from the FO3 Terrible Shotgun. This is most likely a change implemented to directly counter the rapid "over-inflation" of critical damage as outlined in the previous sections.

However, this also has the side-effect of lowering non-SAC critical damage, and more significantly V.A.T.S. criticals & SACs with multi-shot weapons. Because each pellet will only add 10 damage if it crits, in V.A.T.S., a regular crit will only do 75 + 10 = 85 for a normal crit, or 170 SAC damage. These changes make crit % increases somewhat under-valued for characters using multi-shot weaponry.