» Tue Feb 01, 2011 4:44 pm
I just hoarded C4 (I don't think I ever used any C4 I had picked up until I encountered pingers), waited behind an object until they pinged, sneaked up behind them and threw 4 C4 onto the back (aiming at the little glowing bit), got some distance and instantly killed them (I tried with 3 C4 on one and finished it off with less than a MK 60 mag/drum). This was on Post-Human Warrior.