19 Apr 2013 19 Apr 2013 19 Apr 2013
Iread multiple times, that this achievements unlocks at the 25th S.T.A.R.S. Labs Catwoman Mission. On my way to the 20 Stars, which are required to unlock the 25th misson i came across the 7th Superman Mission where you need to defend the human. I failed the mission, and right then, the achievement unlocked.
So I guess, this is pretty much random. But due to the fact, that there is a huge amount of people who unlocked it, i guess the best way to get it, is just playing S.T.A.R.S. Labs and hope for the best.