There is no denying PTRS before patch were pretty weak and they had to be look at.
I reserve my right to express if the're OP or not as I need to play more games.
Im just continuesly playing against guards and cons with PTRS, and it starts to get frustrating for me. Guards do so much demage to infantry they get vet 3 in just some minutes and killing (sniping) inf as hell.
Green cover with guards is such a hard thing, because they snipe you at all ranges and you just can do nothing, even with strog elite infantry like fallschirms you can not approach (before you near the squad is sniped and needs to retreat).