Do you always get an assist if you've been doing damage? Multiple times now I've been firing at a target for some time, another player will drop in when they die and say 'Ha just took out 'X' on my own' and I'll say 'Nah I've been firing at them for ages' and they say 'You'd have got an assist if that were the case.'.
I don't have the assist picture in the kill feed, so they're right in that regard, but I know I've been doing significant damage. So is there a time that you get an assist specifically? Does it only come up under certain circumstances? Or with a specific percentage of damage?