So you cannot do ANYTHING other than use your shotgun. If you heal someone, it resets, throw a nade, resets. It is either broken, or just poorly worded.
It's more than likely a bug or an oversight of their progression system. Something I feel could be easily fixed. If you want to try and get it before they fix the issue, I'd suggest going into a squad deathmatch on the empire state map as support, hiding away in the upper floors and take yer time in offing anyone who tries to come up there. Itll take a decent many attempts, but eventually you'll likely complete it.
Came afeter trying this. And yes! You should make the kills without doing any other that having your shootgun, no granades, no supplys or tools! Thanks!
