I know I'm late but there's a save point for I think its every other main objective it was on one interview on www.gamespot.com the developer inteview i think that told you
Location: On the edge ...... of my bed, about to fall out. Name: Call me e_town
Age: 17
Posts: 2,504
PS3 ID : E-town or Subject17
lets clear this up. theyre not save points. they're check points. that means if you turn off your ps2, you have to start from the beginning. it still does not save mid mission