Is this product part of a larger collection?

Yes, it is part 2 of the Final Strike Figure Series and pairs with WFC-S26 Autobot Alphastrike Counterforce to complete the mission battle scene.

Questions & Answers: Transformers War for Cybertron Siege WFC-S27 Decepticon Phantomstrike Squadron 4-Pack Final Strike Figure Series Part 2

The pack includes Voyager Class Skywarp (7-inch) and 3 Battle Masters figures: Shrute, Fracas, and Terror-daxtyl.

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Transformers War for Cybertron Siege WFC-S27 Decepticon Phantomstrike Squadron 4-Pack Final Strike Figure Series Part 2

4-FIGURE SPECIAL EDITION PACK: Includes Voyager Class Skywarp (7-inch) and 3 Battle Masters figures - Shrute, Fracas, and Terror-daxtyl; Part 2 of the Final Strike Figure Series
FINAL STRIKE FIGURE SERIES COLLECTION: 2-part collection where 2 strike teams clash in a single mission; pairs with WFC-S26 Autobot Alphastrike Counterforce (sold separately) to complete the mission battle scene
COMPLETE MISSION BATTLE SCENE: Line up this package with WFC-S26 Autobot Alphastrike Counterforce (sold separately) to complete the full battle diorama
CUSTOMIZABLE WEAPON LOADOUT: Includes 2 weapon accessories that attach to figures in custom configurations plus 3 Fire Blasts accessories to simulate battle effects
WAR FOR CYBERTRON TRILOGY: Celebrates the Siege chapter of the War For Cybertron Trilogy; Decepticon Phantomstrike Squadron launches quickstrike surprise attacks against key Autobot positions