Siren (Killing Floor 2)

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The Siren in Killing Floor 2

General Siren Information

The Siren is a slow but deadly zed capable of ranged damage and very close melee attacks. When in range, it unleashes a bone chilling screech that damages and visually disorients all players within the range of its attack. The Siren's scream ignores player armor and will destroy any grenade that has not gone off when it screams. She is considered to be of severe threat to players due to its high damage output, large area of effect attack, armor piercing, and grenade destruction. Sirens are priority targets in almost all situations and should be handled immediately. The damage of multiple Sirens will stack upon each other.

Statistics

	Normal	Hard	Suicidal	Hell on earth
Bounty	£28	£25	£21	£16
XP	11	15	15	15
Base Health (Body)	172	230	310	356
Base Health (Head)	116	155	178	193

Multiplayer Scaling

- Sirens have their health value scaled accordingly to the number of players in the game.
- The Siren's base body health is 172 on Normal, 230 on Hard, 310 on Suicidal, and 356 on Hell on Earth.
- The Siren's base head health is 116 on Normal, 155 on Hard, 178 on Suicidal, and 193 on Hell on Earth.
- These values are increased for every additional living player in the game, meaning the health values are determined by the number of players that are alive when they are spawned.

	Normal	Hard	Suicidal	Hell on earth
Body / Head Health (1 Player)	172 / 116	230 / 155	310 / 178	356 / 193
Body / Head Health (2 Players)	189 / 121	253 / 162	341 / 187	392 / 203
Body / Head Health (3 Player)	207 / 127	276 / 170	372 / 196	427 / 213
Body / Head Health (4 Player)	224 / 133	299 / 178	403 / 204	463 / 222
Body / Head Health (5 Player)	241 / 139	322 / 186	434 / 213	499 / 232
Body / Head Health (6 Player)	258 / 144	345 / 193	465 / 222	534 / 242

Notes on XP

• XP rewarded for your on-perk weapons.
• Killing with weapons other than your current perk grants the XP to the perk that weapons belongs to.
• Damaging with on-perk weapons and then finishing it off with an off-perk weapon divides the XP and grants it to both perks.
• Damaging with off-perk weapons and then finishing it off with an on-perk weapon divides the XP and grants it to both perks.
• Assist kills grants full XP.
• The Katana currently does not grant XP towards any perk.
• The bash attack (default v) does not count as Berserker damage for Berserker XP, meaning it grants the XP to your current perk.

Speed

- Sirens never sprint, they are only able to walk.
- Movement speed is randomized, but is skewed towards higher values as difficulty increases.
- Movement speed is set to maximum at all times on Hell on Earth difficulty.

	Normal	Hard	Suicidal	Hell on earth
Speed (Walking)	180 - 220	180 - 220	180 - 220	180 - 220
Speed (Enraged)	180 - 220	180 - 220	180 - 220	180 - 220
Chance to Rage on Sight	0%	0%	0%	0%
Chance to Rage when Shot	0%	0%	5%	10%

• For comparison, a healthy player character with minimal weight walks at a speed of 383, and sprints at a speed of 460.
  
• These values are increased by 1% per level for Berserkers, Gunslingers and Medics.
  

Resistances

- Sirens have no reistances, but one crippling weakness to explosives.
- However, Sirens compensate for this weakness with their scream. Their screams destroy explosives and grenades in a radius around her.

	Ballistics	Piercing	Slashing	Bludgeon	Toxic	Fire	Microwave	Explosives	EMP
Damage Taken Multipler	100%	100%	100%	100%	100%	100%	100%	200%	100%

- Sirens have 2 weak spots, which are the head and the neck.
- Sirens wear a metallic plating over their bodies, which reduces the damage when they are shot in the chest and hips, acting as a crude bullet-proof vest.
- Note that damaging them in the neck is not the same as damaging the head; Damaging the neck will subtract from the body health, not the head health.

	Hit Zone Damage Factor
Head	110%
Neck	110%
Chest	50%
Hips	50%
All other	100%

Behavior and Extermination Tactics

- Sirens, while slow, are capable of doing massive area of effect damage. Their scream is extremely potent and lets out a visible distortion field, which indicates the range of their scream.
- Do not throw grenades at Sirens as they will just scream and destroy them. Kill Sirens from a distance before throwing any grenades.
- Level 14 and below Demolitionists without the "Siren Resistance" skill should be extra careful around Sirens as their screams destroy explosives. This includes C4 that has been placed on the ground in advance. When using their projectile weapons, time your shots inbetween screams.
- Gunslingers and Commandos have high powered, long range ballistic weapons that can take out a Siren from long range with headshots before they can do any damage. Therefore, they are the most suited for exterminating Sirens and should do so on any given opportunity.
Demolitionists can eliminate Sirens the quickest, but caution must be exercised when shooting at Sirens without the Siren Resistance skill.
- Supports, Firebugs and Berserkers are capable of killing Sirens very quickly with their high tier weapons at close range. Berserkers can kill Sirens in a single explosive shell with the Pulverizer, while Supports can reliably decapitate Sirens with a well-placed shot from the Double-Barrel Boomstick. However, it is risky to do so as the damage of their scream is greatly increased the closer you are to her.

In-PvP Tactics

- As a Siren in PvP, it is best to always work with groups of other Zeds especially player-controlled Bloats, Husks, Crawlers, Fleshpounds and Scrakes, since the Siren's Vortex attack can paralyze its victim for several seconds, giving the other Zeds a chance to deal massive damage in a short amount of time.