metalworks is the least important map for rollout speed. HP is way more important because you need to survive spam that can hit you much easier than on any other map, sure you can focus on dodging all of it but then you're really focusing too much on avoiding damage instead of dealing it, and it's easy for roamers to bomb from the crates and hit you with 100 damage, so you're fucked with 10 hp and will get pistol sniped
you remind me of all those ugc kids that think they're creative by doing shit no one else does. the reason no one does it is because it doesn't work at higher levels, not because you've made some groundbreaking discovery