- Alien mobile fortresses which the player must battle on both the globe and in tactical combat.
- New player-controlled aircraft, including several types of helicopters. Different aircraft will have different combat capabilities forcing the player to use the right craft for the right job.
- More varied alien abilities in tactical combat to keep the players on their toes. For example, the Magetra have the unique ability to consume dead aliens and humans to heal and energize themselves during combat.
- More varied tactical combat mission types.