Quoted from Spyderturbo007:That's not true at all. RD2 is actually two separate disks it's so big. I've installed XBone games offline before so I can play a single player game quicker without the day one update. They work just fine. The data is definitely on the disk.
Yeah, having the disks will definitely cut down on download time which helps a ton for people with slower internet connections. With a 100mbps connection it took me 3-4 hours to download and install the preload last night on the PS4. There's a good chance that there will be a fairly big day 1 patch for RDR2, as there often is for a lot of AAA games. With a large open world game I wouldn't want to play it without the day 1 patch as it will contain a ton of bug fixes and possibly additional content.
However, sometimes bugs and glitches are amazing, at least from Bethesda, lol. Check out this video showing a pretty hilarious glitch from Skyrim. Credit to GiantBomb.com, my favorite video game website.