For reference I’m silver 1. I feel like I’m often being killed by someone shooting into my chest before I have time to line up a headshot. Should I just be doing the same and aim for the chest, as it takes less time to get on target?

This isn't targeted to *any one* specific post but please people stop making those posts where your main point isn't practice. Being realistic here the only reason you got there for most of you was practice, while the rest of you had a comb...