SGA: On the 'Old Wolf, New Tricks' quest, you don't have to actually get the kills with the axe if someone else has one near you. As long as you damage the enemies before they get axed, you get credit. I got pissed last night when I was doing a quarantine mission and some asshole stole my axe. I noticed after the quest was finished that I had 8 kills though, without ever picking it up.