Originally Posted by Cooljoe
In other words, can I load previously saved checkpoints after beating the game or does it auto automatically delete it? Thank you.
Yeah you can reload any checkpoints that you have manually saved after beating the game. However the only autosaves you will be able to load after the beating the final game is the safehouse one if I remember correctly. If you are going for multiple ending achievements in the same game your best bet would be to cause the ending; once the achievement pops just reload the safehouse save to be sure or just create a manual save before the final mission.