
On higher difficulties, Sirens have a chance to enrage upon sighting the players, and have a chance to enrage when shot. Sirens move slowly when docile, and sprint when enraged.
Damaging with on-perk weapons and then finishing it off with an off-perk weapon divides the XP and grants it to both perks. Killing with weapons other than your current perk grants the XP to the perk that weapons belongs to. The base damage value further modified by the difficulty-specific multipliers. Siren will not initiate a new scream if player get closer than 130 units.
Scream (minimum distance from player to start) Scream (maximum distance from player to start) For kill reward calculations read Dosh Mechanics.