My frail little eagle isn't beefy enough to kill anything in actual warzones, so i was hoping the distress signal event would count towards kills for the missions... they don't :-(
I'm not sure if this was a design decision or simply a bug but I wouldn't be surprised if they wanted us to test out the kill missions in the actual low and high conflict zones. They can be brutal at times but just make sure to stick to your target and have a few heat sinks ready just in case you need to make an escape.