The Kohat Police Lines attack's use of a vehicle bomb followed by armed infiltration is best described as what type of tactic?

Explanation: The Kohat attack, combining a vehicle-borne explosive device with subsequent armed infiltration by multiple gunmen and a separate suicide bombing against an intelligence office, is best described as a hybrid or complex coordinated assault. This type of multi-phase attack, designed to overwhelm initial responders and prolong the engagement, has become an increasingly common feature of major militant operations against fortified security installations in Khyber Pakhtunkhwa over the past several years.