Yeah...time to echo what a few others have said here : MC getting stabbed through his trauma plate is...well, let's say unlikely at best. That plate carrier is either holding a ceramic or steel armor plate and it will most definitely stop a knife unless you're being stabbed by the fucking Hulk.
I'll just go ahead and blissfully assume the dev had a seizure or something that jerked his mouse sideways and those stabs were actually supposed to be above the vest or to the side and into his armpit or something.