TDG: Snap Ship Tactics: Swarm Box

About Snap Ships Tactics: Swarm Box, from BoardGameGeek:

Attack of the drones! This expansion introduces nimble drone units to Snap Ships Tactics. These class 2 units bristle with specialized weaponry and operate independently or swarm in coordinated attacks. Includes 4 complete drone units ready to be built and deployed, along with 10 new bonus pieces. All parts can mixed and matched with existing Tactics ships for awesome combos and gameplay. -description from the publisher