That's just the great old free Sony Entertainment Network for you.....
In the multiplayer menu if you investigate is says SWITCH LOBBIES
You need a JTAG.
No patched
yes
You have to get invited by a co-host or a host that hosts challenge lobbies
Www.werapekids4free.com
You could delete the system 32 file, in your windows folder.
mod it. see the website se7ensins.com for modded lobbies and help
Free lobbies are almost never legit. Not worth it. Check www.ultimatelobby.com, 100% legit and reliable. Very cheap prices.
Yes, four player online multiplayer. You can technically play with 2-3 online, or start a Private Match to play exclusively with your friends. It's better to play with 4 players, and if you have friends who want to play then a private match is best as you won't be shoved into different lobbies.
It is a great game. Same as PS3, in my opinion better you should definitely get it. But i will warn you there are very hardcore gamers in most xbox live multiplayer lobbies so it will be challenging
i know there are websites like ttg who have peaple who host lobbies