I've taken a couple Border Patrol missions in the past couple days, and the kill count isn't showing up in my Missions tab. Everything else works fine, I get the XP after killing 15 bots (or more if I have a group), but it's hard to tell how many are left without the kill counter.
I've talked to a couple other people, and they don't seem to have this problem, so I wonder if I screwed something up client-side.

EDIT: I have figured out that only the person who took the BP mission see kills, if you are in a group.