The limited number of maps for the Swarm mode was a common complaint, potentially hurting long-term interest.
The star of the show. and Swarm (Horde-style) modes are highly praised for their depth and objective-based play. Graphics/Sound Section 8 Prejudice
One of the game's most unique features is the ability to choose your spawn point anywhere on the map and drop from orbit. The limited number of maps for the Swarm