Equipped with Lockheed P-3C Orions, the squadron is assigned Anti-submarine warfare wartime role.

In 2020, the navy initiated its LRMPA modernization program under which the P-3C Orions of 28 squadron would be replaced with 10 militarized versions of the Embraer Lineage-1000 jets also known as Sea Sultans.

[4][5] The first of these jets arrived at PNS Mehran in 2021 for which an induction ceremony attended by the navy's top brass was organized.

[6][7] The squadron's Orions were deployed on combat support operations at NWFP during Counter-insurgency ops in early 2010.

At the same time an Orion was also deployed in the Aegean Sea for the Dogu Akdeniz-19 naval exercise with Turkey during which it reportedly breached into Greek airspace over disputed territory alongside several Turkish warplanes.