Stalker

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==Overview==
The Stalkers, also know as "Specimen-D" type infected, are Infected units that primarily use high armor piercing -type attacks and "back-stabbing" -type attacks. 
===See Also:===
* The Infected
* Boss Strike 4: Infected Troops
==Player Units==
	Specimen d01 "Proto-Stalker"
	Specimen d02 "Stalker"
	Specimen d03 "Advanced Stalker"
	Specimen d04 "Archetype Stalker"
	Specimen d05 "Apex Stalker"
==Enemy Units==
	Enemy Stalkers
	Enemy Apex Stalker