Four-player Gears of War 3 co-op campaign confirmed - GameSpot

Epic Games design director Cliff Bleszinski confirms next April's sci-fi shooter series finale will double number of players in cooperative mode; female soldier confirmed as Anya.
Gears of War 3 is the conclusion to the Gears of War saga.

Gears of War 3 Campaign Preview - GameSpot

Gears of War 4 - Wikipedia

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Gears of War 3 - Longplay (4 Player Co-op) Full Game Walkthrough

Gears of War 3 - Wikipedia

Gears of War (franchise), Gears of War Wiki

Xbox Live Update: Gears of War 3 beta, Section 8 Prejudice - GameSpot

Gears of War 3 (Video Game 2011) - IMDb

Gears of War 3 Beast Mode Hands-On - GameSpot

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Gears of War 3 - Longplay (4 Player Co-op) Full Game Walkthrough

Gears of War 2 - Wikipedia

Wouldn't it be cool if gears of war 3 was 4 player split-screen

Gears of War (franchise), Gears of War Wiki