You must defend the capital city
You have 5 anti infantry squads (4 w/ flamers, 1 w/ heavy flamers), 3 Anti vehicle squads (1 w/ rockets, 1 w/ meltas, 1 w/ plasma cannons), 3 defensive squads (1 w/ sniper rifles, 1 w/ heavy bolters, 1 w/ multimeltas) 1 Fast attack squad (Florencia's elite seraphim), 10 standard troops (3 w/ bolters and 7 w/ lasguns), 7 medical squads (1 elite squad, 6 regular), and 5 hammer units (You+Filigree+servo skulls+Tybalt, Farseer+Warlocks, Galatea+retinue, Florencia+retinue, Tessa+celestians)
The Retinues are all equipped with 2 meltas and a second sergeant with a power weapon.
You have 3 Fast Attack squads (sentenel), 6 transports (immolators, rhinos, chimeras, Repressor), Light tanks (basalisk, Exorcist), heavy tanks (4 leman Russ [2 Demolishers & 2 Standard]), and 2 super heavy tanks (Baneblade, shadowsword)
(you * technically* have more troops but they are going to different parts of the planet)