Fun game but I dont get the save system

The game is a lot of fun. Graphics are top notch, controls work well and its challenging. On that level its a 5 star game. However the save system is horrible. I play the game for 30 minutes. All along I get messages that say "progress saved" during gameplay...but if I decide to quit and then pick up the game later it takes we WAY back in my progress and Ive wasted a ton of game play. They need to dramatically improve the save system and this game will be much better. Right now its so bad I really dont want to play it much.

rattlhed about Duke Nukem: Manhattan Project