Lineage is a modified E190 with 2x internal fuel tanks in the cargo hold, it was selected for this very reason. You had a regional liner with already certified additional fuel tanks, I don't know whose bright idea was it to go for this very platform, but it felt good on paper,
keep one tank
remove the other, strengthen the airframe from a rotary bomb bay, (yes they wanted a rotary bomb bay, this is why they chose Lineage over G6000 based swordfish)
A maritime x band radar (Seaspray 7500e)
L3 harris MX20 EO/IR
AcoustIcs Processing System
Sonobuoy launchers
an Elint/ESM System like the one we see on the RAS72
They didn't opt for an added MAD stinger but could've gone with a distributed MAD system.
The airframe that was in PN use 91, was transferred to PAF, No 12 Sqn, J760 is the new tail no.
I don't know whether this is temporary (I hope and pray it is) (I hope this is just temporary till PAF gets another G6000 as they have to send the old one for conversion (if they do)).
2 airframes are in South Africa for conversion. (I hope it goes according to plan)