If i buy the game from the local game store, and install it using the disc, will i need to have the disc inserted at all times to play? or will it be a one-time install like BF3?

thanks

I think you should ask EA support XD

If you run it through Origin, you won't have to insert your disc.

No seriously, Modsuki is right, when you purchase the disk variation of your game, it will come equipped with a CD key, you can do the traditional CD-ROM install, but with Origin, it gives you the option to insert the key into the redemption tab and commence downloading the install files from the internet.

Even if origin rejects it, EA customer service is actually very cool, they will gladly redeem your code over the phone and add the game to your library; they did this with my original Crysis CD key.

Point being, origin will launch every time you run C3, first ime you run C3 on Origin, it will ask for CD key. Your HDD is a disk too you know?