Spoiler:Zombie exodus safe heaven, i tried so hard and got so far in the end, it didn't even matter

I dont know how to put the spoiler tag, but i tried and played the game all over just so save a character that i will mention later, in chapter 9, where i tried to save gina, but she just kept dying, how do i save her, is it possible or is it still a scripted death like it was before?