I'm planning on starting my first Halo 2 Legendary run on the MCC but I am worried if the Reach Update will erase my saves. I have been playing MCC for about two years and I remember some updates affected your mid-mission checkpoints by erasing them. (When certain skulls were added to CE, your CE mission saves were erased) Has 343 ever said that the addition of Reach will affect your current campaign progress? I can't find anything in their recent blog posts about Reach that talks about this. Should I play my campaign without worry of my progress being erased or should I just wait until after the Update drops?
Mid-mission saves be affected when Reach releases?