You can save every 30 minutes and it won't matter once you get the bug that corrupts the save file. When you try to load back an old save it freezes the xbox. Clearing cache and playing off the recent patch doesn't fix it. Just a quick question. What part of the world are you playing in?
I understand that and I feel for those with this particular issue. I'd be livid if I was facing these problems. I've done all I can to try and avoid it and so far it's worked over two toons and 95+ hours of game play. I seem to remember reading on another forum (or perhaps it was this one) that when your most recent save gives you the DLC error that you should go to the load menu, press X to bring up the save device dialog and point it at your HDD, then try to load an earlier save. This might help to keep other saves being read as corrupt because the first one did.
Again, I haven't had this issue, so I'm not sure if this will help. It's just something I picked up reading forums where people need/ask for help with bugs and work arounds.
Just a side note... Obsidian (not Bethesda) actually produced New Vegas under a license from Bethesda. Bethesda obviously made a big mistake selecting and trusting Obsidian, but I think we should direct our dissapointment for the development to the right folks, and that is Obsidian.
The argument can also be made that Beth and Zenimax pressured Obsidian to push the game out to early. That they were rushed in production and in testing to beat Fable 3 to the market. Assuming it's all Obsidian's fault is rather narrow minded, not to mention dead wrong.
If you just want to get to the end here is one suggestion. My friends and I were able to complete the game several times (taking different paths), and the simplest way is to have Speech, Medicine (and optionally Barter) to 100. You will cut out most of the tasks that lead to bugs, end conversations quickly, and in some cases, talk you way right to the end of quests. Using this strategy, you ought to be able to finish any path, even on hardcoe, in under 15 hours if you focus just on getting to the end.
Neat idea. I might do that on my hardcoe play through just to see how it all unfolds. I'll name my toon "Jedi M. Trick"