Yes it is.
you probably don't need Xbox Live for beast mode, just as you didn't need Live for horde mode on Gears 2
no
if your talking about xbox live just keep on getting xbox live achievements
Yes, you can play cooperatively with a buddy over Xbox live, or on the same Xbox.
you have to play gears of war death match on xbox live.
No, it does not but Halo 3 does
If you want to play it on xbox LIVE then yes, but for campaign mode, no
gears of war 3 is the sequel to the hit game gears of war 2 which is supposedly titled gears of war 3 extinction were you play as locust in story mode to kill of the the remaining cogs and humans on Sera this is supposed to come out in 2010 27th of July on xbox and now wii so you can use it without xbox live I don't know if all this entirely true though so don't hate if im wrong because i heard this on www.gamespot.co.UK by some randomer who is no significants to this world
yes,but you have to by it
Gears 3 does in fact need xbox live to play multiplayer, but not for experience. Also, you can play multiplayer locally on Gears of War 3 via system link or on 1 console.
You do not need Live to play horde.
Yes he's a beast at H3. Dappy may have Xbox live but its not fully confirmed what gamertag he is using.