Well... I want to say something to you, guys. I'm talking about NOT performance but of quest bugs and glitches.
I come from Skyrim Modding. I made over 50 mods, one is near DLC size with some quests and other things like voice acted NPCs.
I know, I know: Red Engine is pretty much different from GameBryo Engine, but the workflow of making mod and/or the game is the same thing: Creating assets, Creating NPCs, Creating Quests, Creating Triggers, Creating and attaching Scripts, etc.
I learned a thing about quest scripting: if you update a game (or a mod) when a quest is running, most probably you will still have a bugged quest because the (original) attached scripts are attached to the savegame too. This is to make sure to store stages, properties and variables.
Based on my experience in Skyrim, I can confirm that updating a script quest when this is running, you'll have a high percentage to get a screwed script, even if you add some "controllers" and/or "updaters" that fixes the ongoing quest because some things are permanently stored in the savegame.
In short: I think you have to restart the game with the new update if a quest is "very corrupted". The v1.0 is very huge patch and you should not consider to CONTINUE to play your game from a previous savegame.
I come from Skyrim Modding. I made over 50 mods, one is near DLC size with some quests and other things like voice acted NPCs.
I know, I know: Red Engine is pretty much different from GameBryo Engine, but the workflow of making mod and/or the game is the same thing: Creating assets, Creating NPCs, Creating Quests, Creating Triggers, Creating and attaching Scripts, etc.
I learned a thing about quest scripting: if you update a game (or a mod) when a quest is running, most probably you will still have a bugged quest because the (original) attached scripts are attached to the savegame too. This is to make sure to store stages, properties and variables.
Based on my experience in Skyrim, I can confirm that updating a script quest when this is running, you'll have a high percentage to get a screwed script, even if you add some "controllers" and/or "updaters" that fixes the ongoing quest because some things are permanently stored in the savegame.
In short: I think you have to restart the game with the new update if a quest is "very corrupted". The v1.0 is very huge patch and you should not consider to CONTINUE to play your game from a previous savegame.