You should try pairing Guri and Xizor together with Serrisu.
With the right upgrades on each ship it is a lethal list.....
Even with some bad luck, I took down this list the other day with:
Xizor, VI, Virago, FCS, Dampeners, Autothrusters
Drea, ICT, PT, R4-B11
2x Pirate, Feedback Arrays
Drea's turret got blown off thanks to the first damage card to her hull (and I thought Serissu with a Mangler was a waste...), but I killed enemy Xizor and Serissu pretty easily. Guri proved to be a big pain in the arse, as she had a Stealth Device of all things and refused to roll any blanks on green dice. I usually had ships within R1 to block her escape or use their Feedback Arrays, and with the free focus she soaked numerous 4-hit barrages from Xizor without losing her Stealth Device. Almost Feedback Arrayed her to death with her Stealth Device intact, but she killed the last Z-95 and Xizor eventually nailed her at range 2 after using his Dampeners to allow some distance between us.
Guri is good, but I still think the IG-88s have her number. PS6 and IG-88B for the second shot after they inevitably miss with the first... and Manglers will shred her hull too.