I don't find Sheva's AI so bad.
She uses a lot of ammo that is true but she actually really doesn't get hurt that much...( she's saved my ass a lot more than I have saved hers).
Once you give her a good MG she actually starts to be really good...
Heck once you get to chapter 4 ammo for her really isn't a problem, I gave her the starting gun and an upgraded AK 74 and I only give her gun ammo if I have too much and since she got that AK 74 she has yet to run out of ammo.. ( I use starting gun with damage upgraded to max, the first shotty, the first riffle and nades myself).








