Revert the zombies back to their original form; not running, jumping, or jump scaring people.
Give us the choice to save psychopaths, the likes of Cletus Samson and Carl Schliff had justifiable reasons for their actions in the outbreak.
In the first game, women couldn't defend themselves with weapons, had to be held by the hand to be escorted to the safe house, and when zombies grabbed them they didn't fight back and were only grabbed by one hand (not bothering to use their free hand to fight back). The first survivor you're incited to save is Sophie Richards, who has to be saved from rapists.
Looking back on the erotica photo elements, it hasn't aged well because you have to take pictures of scantily clad women or take pictures of women who were implied to have just been sexually assaulted by Jo Slade. The only person who asks Frank to take pictures of her is Cheryl, the rest don't respond to his invasion of privacy.
Both Rebecca Chang and Jessie McCarney are drawn with fanservice in mind (Jessie has the highest Erotica points, while Rebecca has her cleavage exposed and has a prolonged butt shot when she lockpicks the door); as a DHS agent, Jessie should be well-trained in the field but gets her ankle broken early on and is confined to the security room. Since she's a new agent, Brad feels the need to protect her from the outbreak (so her inaction is somewhat justified under that pretence). Rebecca Chang is introduced when she shoots a zombie in the head and is indicated to be more active in the field but she gets demoted to the damsel in distress who has to be saved by the protagonist. After she gets killed by Sullivan, nobody mentions her again and Chuck is angrier about the Phenotrans indirectly killing his wife than Sullivan killing Rebecca.
Even Annie isn't written that well now that I think about it, her entire relationship with Nick just consists of her being rescued and Nick continuously asking her if she's alright, I don't remember them sharing any interests or bonding. The same could be said of Stacey Forsythe, who only bonds with Chuck through Katey's condition and nothing else.
Rhonda was written better and her combat skills are actually shown to the audience (she runs a crowbar through a zombie's head and defends herself from rapists, Mel and Clyde).
While surviving the outbreak is indeed tough, the women's combat skills are told to the audience, not shown to the audience. Romance isn't what we're here for, if you chose to write a love interest then you have to show what makes them so attractive to the hero.