I always assumed Tifa had sturdy defense but the death battle claims here defense is lower than average, which is a surprise. If she created a nuclear explosion she would die even with the best defense in the game. I imagine she could take around five or so bullets into non-lethal areas and still keep fighting. A certain someone lasted for around 20 or more bullets before succumbing but they are enhanced in certain ways and his suit may be slightly bulletproof over a white t-shirt. XD

For Yang, I remember her reloading with arm gestures but I'm honestly not 100% sure if she has unlimited ammo or not, but she seems to have it. They haven't gone in great detail on their exact capabilities to be honest. Hmm...I may need to reference her capabilities list or we can kind of wing it for rule of cool

Or I can go with an original character that's a bruiser class as well.