From Halopedia, the Halo wiki
On December 12, 2559, D. Svarro was onboard UNSC Infinity when it was ambushed by Banished forces upon arrival at Installation 07. As the Infinity fell to the Banished assault, Floyd made landfall on the ring's surface. Svarro then led guerilla operations on Banished convoys on the ring. At some point before Spartan Hudson Griffin was captured by the Banished in late January, 2560, First Lieutenant Floyd contacted Svarro, suggesting that they could work with Spartan Nina Kovan in a guerilla operation on the Banished outpost known as Riven Gate.
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