I'm not sure what exactly i'd prescribe, but i can say what I felt at times was that I was running out of bullets not necessarily from my own fault but more from rng. Like it felt like there's an iteration on the AI/level design that's not even too different but that would feel more fair if you ran out of bullets, bc you'd be like 'yeah I could've managed my movement/shooting better'. Ofc take it with a grain of salt, like I said it could just be a skill issue on me.