Specialist Stack

Specialist Stack is an Epic gun perk in Call of Duty: Infinite Warfare. It is exclusive to the "Horizon" Prototype Weapon version of the X-Eon. It provides a new gun perk or standard perk every 2 kills. Earning in order Haste, Ninja, Takedown (Enemies death locations are suppressed), Engineer, Deathbringer and Nuclear. 
==Variants==
Weapon	Variant	Cost	Notes
X-Eon 	Horizon	N/A 	Unlocked via supply drops as part of the QR-M5TR Collection. Available as a MKII.
Category:Call of Duty: Infinite Warfare Gun Perks