What is the highest single player kill count you have had in a base?

Dreamnomad

I think my highest was 41 and that was in a normal difficulty outpost. I'm really not saying this as any sort of brag. It's more like I've struggled figuring out why someone would be so determined for such a small reward. The person did succeed in getting the gen mat but there is no way I'd spend that kind of time on a normal mission.