Dark Sector

This is an accumulative achievement over the course of the campaign. Use your glaive and throw it into anything that is emitting an electrical spark to charge it and throw it at enemies. Also, after you've killed an Elite Trooper, his corpse will be charged.

I found this one a bit challenging because there aren't too many places with electricity or elite soldiers for that matter.

**** Spoiler Alert *****

At the end of your first playthrough on normal difficulty you get to face Mezner. There are two electricity sources, one above and one on the right of him. After you beat the first three tentacles, you get two tentacles and infinite zombies coming at you. So take your time, avoid the tentacles and keep electrocuting the zombies till you get it.

Thats how I got and thought maybe someone would want to know of this alternative.

Regards

Near the end of Ch. 8 you'll come across an electric panel and 2 turrets down a corridor from the panel. There will be about 10 soldiers that come out of doors behind the turrets, so after you take out the turrets, keep using the electric panel and slicing guys up. Load checkpoint and rinse and repeat until bleep-bloop.