Forum:Playthrough 2 /2.5

I've finished the 1st time, and started on playthrough 2. However, I would like to do only the Vault missions so I can get to the end then come back and do the optional missions (playthrough 2.5, I think). This is supposed to provide tougher enemies, and better loot. But, I want to make sure I do it the right way and not mess it up. Will I be locked out of any optional missions if I go to the end and then come back? Should I accept all of the missions first, so they are on my list, but just not do them until I reach the vault? Or, can I leave them, come back to them, and then be able to do them? I have only the basic game, and on PC. Any help would be appreciated. 159.182.1.4 20:51, May 7, 2010 (UTC)