From Comic-Con now ended some days we get two new amateur video on the Beast Mode Gears of War 3, but understand that there are some unusual gameplay. In the first video we discover that the Armored Kantus thanks to spikes placed on its back, can kill a human simply by doing a somersault and the new animation for reloading the gun Boltok. In the second video sequences instead we see new game Grenadier, of Boomer Grinder and Mauler. There will propose below.

Gears of War 3 - Armored Kantus Gameplay | HD version
Gears of War 3 - Grenadier and Boomers Gameplay | HD version