Several variants of the Berserk pack, some of which grant additional powers. Each item comes as a pack and as a potion, so mappers can chose the style that fits best.
All items are compatible with each other and any item that uses PowerStrength (eg. the R667 Berserk Sphere), this means a timed berserk will not override infinite berserk, and the extra powers have their own timer.
BerserkPotion: gives 100 health and lasts for the map (same as the original berserk item)
BerserkStimpack, BerserkPotionSmall: gives 50 health and lasts for 30 seconds
BerserkMedipackRegen, BerserkPotionRegen: gives 100 health and lasts for the map, also regenerates 5 health per second for 60 seconds
BerserkStimpackDrain, BerserkPotionSmallDrain: gives 50 health and lasts for 30 seconds, also drains life equal to 25% of the damage dealt
BerserkStimpackProtection, BerserkPotionSmallProtect: gives 50 health and lasts for 30 seconds, also reduces incoming damage by 50%
BerserkStimpackSpeed, BerserkPotionSmallSpeed: gives 50 health and lasts for 30 seconds, also grants faster run speed