The TTK in this game is dumb. I get that they're trying to make armor useful, but this just makes the guns feel like their shooting peas. It'd be cool to have a feature where getting shot slows you down and not be able to fire, effectively decreasing the TTK all while keeping armor useful. Gameplay should be scary, at this point is just boring and generic.
(Not sure if this is a TTK issue but an issue nonetheless)