yes.
no
You can get one in horde on your loading class
Gears of war Judgement there is going a mode that you can play as the locust horde like Beast mode but in multiplayer
you will need 5,000,000 cash in horde and you get the big money to onyx
Beast mode in gears of war 3 will a separate game mode in the game just like horde was in gears of war 2. In beast mode you will be able to play as the locust monsters such as the ticker and kantus
no it will not it will have firefight like a halo version of gears of war 2 horde mode
so far it is confirmed there will a lambent berserker and original berserker . There is a lambent berserker in the campaign and 3-berserker bosses in horde 2.0
In GoW Three,there is a big war- 1.The remaining gears of the COG. 2.The stranded. 3.The remnants of the Locust Horde under queen Myrrah. 4.The Lambent. U play as Marcus Fenix.Dom,Cole and Baird are there too.
you probably don't need Xbox Live for beast mode, just as you didn't need Live for horde mode on Gears 2
I cant fully answer the question because all levels are different, but in my experience you are only allow 1.
There is no Gears of War 3
Horde mode and beast mode usually do the trick, but Warzone is probably the best competitive game type.