New modes coming to Halo Wars via DLC

Microsoft has confirmed a new add-on pack for Halo Wars is on the way to Xbox Live “in the coming weeks.” It will add three new multiplayer modes to the game. The pack will also add four new Achievements worth a total of 100 Gamerpoints to proceedings. The three new modes are:

• Keepaway Mode, the Halo Wars adaptation of Capture the Flag. Teams will battle it out to capture a free-roaming Forerunner Sentinel to score points before the other team. Capture three sentinels to claim victory.
• Tug of War Mode, all about having a stronger army than the opponent. Defeating enemies is essential, but success is determined by a combination of the army, buildings and resources left standing in the end.
• Reinforcement Mode, all active battle units are provided in successive waves. Players must adapt their tactics and use the ever-changing set of units to outwit and outlast the enemy.

No official date or price for the DLC as of yet, but Microsoft say that info will be coming soon.