Offshore "Operation" and Patrol Ship. I think these ships can be armed quickly in crisis times.
%100 dual-use fitted but not with ships.
In wartime, I expect the quick installation of
Mar-D
Gökdeniz 35mm( with EO tracker and fire control radar without search radar)
Atmaca and/or medium-range anti-ship missile
Ares-2NCL compact ESM
SUNGUR MANPADS launcher
UMTAS/CIRIT launcher.
None of the above will require a redesign, deck penetration, change in the power distribution system, or ship BMS (Battle management system)
The vanilla version also has a helicopter, UAV, and USV operation capability. So they will also act as a control hub for UAVs and USVs and will lengthen the reach of UAVs without a SATCOM.
So in wartime, they will have similar firepower and protection to a FAC minus the speed plus UAV, helicopter operation capability, and can carry spec-ops detachments with 2xRHIB or USVs like Ulaq.
They will be armed with 76mm guns neither in peace nor in wartime. As putting 76mm is costly. It penetrates the deck requires design change. The renders of the ship don't have 76mm guns for peacetime operations.