The Organic Geth Hunter
The life of the generic Reaper grunt is generally good. Every day, you get pleasure out of betraying your race by shooting them with your human corpse arm for a rifle (not that there is anything wrong with that, we all appreciate unique snowflakes like you).
Today, you are sent out to deal with a pesky multi-species team that has eluded death multiple times. While closing in on the combat zone in the Harvester you're travelling with, you shake your head at the incompetence of previous swarms that failed to capture or kill these soon-to-be-dead organic meatbags. After all, you always manage to make it through unscathed with minimal losses, no matter how tenacious the enemy might be.
Finally, you are dropped off. Beside you stand a Ravager (you've always hated spiders, why couldn't it be butterflies or something), a Brute (you've always had the deepest respect for this badass krogan/turian tank of a ... construct) and, your eternal leader, a Banshee (every night you catapult yourself awake while still hearing the blood-curdling screams these Banshees like to make... you shudder at the thought of how horrible it must be for these organics. You almost pity them.). Soon enough, the first team member falls as his heart is ripped out by the Banshee. It looks like this battle is going to be a short one.
You were not prepared. A loud, sharp BANG goes off behind you. You get Ravager acid all over your body (eww!). Some swarmers run away in terror from whatever force mopped the floor with the Ravager so easily. The Brute, always quick to interpret such deeds as an insult to himself, charges over towards the Ravager's lifeless body and beats on his chest to show that he means business. BANG. Before your eyes, the Brute keels over, very much dead.
You start to panic. All your comrades lie beside you, life already having fled from their bodies at the hand of this relentless enemy. The Banshee is nowhere to be seen. You get the feeling someone has finally put a stop to her heart-claiming rampages.
BANG.
You fall on the ground, bleeding all over.
Before the veil of death covers your eyes, you can see a salarian infiltrator holding a Geth Plasma shotgun appearing out of nowhere...