I've had some good fun with this with friends the last few days but the latest patch, which dropped yesterday, was supposed to improve hit registration. Unfortunately it seems to have done the opposite for a lot of users, with a great new message claiming 'packetloss' as the reason 5 out of 7 shots didn't register. This coming from a modern computer on a gigabit network with >30 ping to the server.
We also had some weird issues with bandaging and healing people just not registering, but still spending resources, and a lot of people just gave up trying to heal altogether.