Also included in this title update are as follows:
Quote by xbox360achievements.org:
Grunts now do more damage to air units
The Scarab now has 25% more health and does 25% more damage
Gremlins now requires 2 reactors to be built
The Arbiter now takes 25% more damage while raging
Hunters now focus their Assault Beam much faster
Brute Chopper is more effective vs. air
Bug Fixes:
The Cryo/Reactor Glitch has been fixed
The Multiplayer Lobby should now work better for people with misaligned controllers
Y-Abilities should no longer have their cooldowns reset erroneously
Profiles that had problems accruing points in Multiplayer should now be able to gain points properly