Don't hack.
Not with a risk of being banned for cheating and other violations of the user agreement for Xbox Live
yes you dooo
i don't fully understand your question but if your talking about playing a game that says you can play it on live but you want to just play it without going on live like a career mode or something then yes. But, if your asking can i play my game on live without being conected to live then no off course not. Also some games allow you to play games that are live games but you don't have 2 be on live so you can play some live games without being on live but you won't beable to play against acual people or talk to anyone.
Yes
you can go online as long as you have the most up to date firmware but you could still get banned at any time i had a flashed xbox and lasted about a year before being banned. but you can still play the home brewed games offline after
You can but after just few games you probably get banned and you have to change IP and console to play online again
You can play with a modified connection, but if you use it to cheat you may get banned from PSN. As long as you are connected to the internet with your PS3 you will be able to play muiltiplayer games. However using a modified connection to cheat could get your account on PSN banned as well as your PS3 banned so you will not be able to play online with it ever again.
Yes definitely as long as its on your xbox you can play it on or off xbox live.
It allows you to play "backup" or copies of games but can get you banned for Xbox live if caught.
play the game the right way, ---------------------- Using aimbots are against the rules, and using them will result in your Xbox Live account being banned. As well as any other account such as an PlayStation account 3.
Yes, you can play firefight in Halo 3 ODST without Xbox live.
Jtag is a mod for the Xbox 360 which allows you to play downloaded games. You could play xbox live with this but you will get caught and banned (xbox and gamertag ban).