Dwindling Party: Domino Squad serves the role as this throughout this story arc (and the series as a whole). In "Rookies", Droidbait is among the first clone in the Domino Squad to be killed by the invading Separatist droids, Cutup gets eaten alive by a Rishi eel, and Hevy is forced to pull a Heroic Sacrifice when the bomb's remote has a malfunction. When Echo and Fives return to Kamino in "ARC Troopers", 99 (who is an "honorary" member of the Domino Squad) gets killed just before they're made ARC troopers. Echo and Fives are the only members of Domino Squad to survive the events of this story arc.
Spoiler Title: The episodes in this story arc are titled after the ranks that the clones in the titular Domino Squad have.
