Welcome to the Imperial Guard, guardsman!

That was the first thing you heard when you joined, and now it's all you can hear when you go to bed at night... Aside from the constant gunfire and shelling. Yes, this was perhaps, one of, if not the worst mistakes of your life. Here you find yourself fighting on a random, insignificant planet, in the middle of dead space, against a far superior enemy, the Tau. 3 million of your kin lie dead, their bodies forming makeshift defenses by this point, and the ones that are recycled becoming your breakfast, lunch, and dinner... You still haven't gotten over that sour aftertaste of your corpse starch rations. The only reason you haven't blown your own brains out with your Lasgun yet or tried running away is because of your (now quickly fleeting) faith in the God Emperor, and the ever-looming threat of a Commissar or an Inquisitor tracking you down, and inflicting a much worse fate upon you than the horrors of war ever could, each respectively.

One evening, however, while you're on watch in the trenches, you begin to doze off... It's been days since you last slept, and the only thing keeping you awake by this point are the copious drugs you're all being pumped with day in and night out, of which just so happened to have run out the week prior. Sooner or later, you're woken up to the feeling of something cold and metallic pressed against the back of your head.

A Commissar's Bolter.

This was it. You were done. It was over. You fucked up, and now your ass was grass. As you closed your eyes and held your breath, waiting for the inevitable, you were caught off guard by the sound of a pulse rifle firing. When you opened your eyes again, and looked over your shoulder, your Commissar lied dead, a bloody mess upon the ground. Stunned, you looked up above the trench line. And there, looking down at you... A Tau trooper. What little hope you had dimmed then and there. This was it. For real this time. You were toast. And then, they took their helmet off...

... Another Human?

"Uh... Hey..." They lowered their pulse rifle. They were wearing Fire Caste armor... Definitely an auxiliary trooper. "... Need a hand?"

Well... did you?