you will need a hardrive or a memory card to save a game yes.
You either need your hardrive which comes inside the Xbox360, or a memory card that can be placed in a small slot on the back of your controller. Either one would let you save and resume a Halo3 campaign.
you go to your game library and it will give you the option to play. press save to hardrive. it will erase the memorie from the disk and will transfer it to the hardrive,
Yes It does...... if the xbox had a separate memory card(for the 360) you can save your data (NOT on the hardrive on the 360 memory card)
You don't need live to save games to the hard drive the game will simply ask you to create a new games save and off you go. If you have a memory card too the game will give you a choice of which device to save your game on.
in the dash board go to the game and press Y then go to install on hardrive
If you are playing online, it will save the world saves to your hardrive, and if you are playing on the downloaded version, it would depend on where you saved the file. If you saved it to the hardrive (which is default) it will save the world files to the hardrive, obviously. If you saved it to a flash drive or removable storage, it will save the world files to that instead.
You can but Hard drives are way better.
log in before you insert game.
No, you just won't be able to save anything.
no,as long as you dont save after use,if you do save,it will block you earning achievements
if u want to save your progress because a hardrive saves your progress through out the game
use a external hardrive