If you made a silver account would you be able to purchase arcade titles or games on demand then use license transfer? If not would a 24-48 hour pass allow you to purchase games or does it still make you silver but able to play online? Edit: Should have just googled it lol, found my answer out in like 10 seconds. Mod can take this down!!
Silver allows you to purchase content such as Dlc's,XBLA and GOD however you can't play online with them. I'm pretty sure you can license transfer too. 48 hour trials gives you full ability of XBL gold however when you go onto your profile it says your a silver but you can do everything a gold account can do.