It seems that the Martyrdom perk either doesn't work, or  it doesn't work in missions where you have infinite deaths. My test, since it's supposed to increase damage, I died, like 4 times, each time using the eviserator would only output 50dps. I haven't tested yet on a life limited map. It would be nice if this perk also gave some feedback, like an icon stack or maybe just a message that tells you what you're at when you res.