Natural Selection 2 - FanFic / Suggestion

Dmitri stood with his back to the wall, in position to cover the back entrances and the ventilation of the engine room. He quickly glanced towards Sarge's position, covering the forward entrance and the main route to the hive room in cargo bay.
"Where the heck is that MAC, Sarge", he hissed. Sarge didn't move an inch but answered in his usual grouchy voice.
"It'll come when it comes, just keep your eyes on the vent. I smell something bad and it ain't your mom's perfume."

"Copy that, but shouldn't we push forward, Sarge?", Dmitri went on. Shifting his position anxiously.
"Not until this position is fortified, you won't. Don't you go ninja on my ass or I'll see you in detention.", Sarge stated coldly. A welcome sound came from the back entrance as a MAC hovered into the room.
"Finally", Dmitri exclaimed and started moving towards it, reaching for his Welder.

"EYES ON THE VENT, CORPORAL", shouted Sarge and fired a few rounds round the corner. Dmitri quickly resumed his previous position as the MAC started building.
"You do your job, and it will do its. Some Skulk probably would have had your behind for lunch there", he went on. As if someone understood the onging conversation, a chuckle came from the nearby vent. Dmitri tensed up, and nervously steadied his aim.

Just then the radio crackled and Sarge checked his minimap.
"Oh, heck.. Looks like the boys in the forward team need some help.", he muttered. A split second decision went through his mind.
"Alright, help that darn bot finish up will ya? Its a risk we have to take. I'll cover the vent."

As Dmitri again took out his Welder and helped the MAC finish up the last of the defenses, a Skulk leaped from the Vent only to meet the tungsten bullets of Sarge's gun.
"Heh, that'll teach...", Sarge began before being interrupted by a claw piercing through his back and sticking out from his chest.Dmitri quickly reached for his Rifle and the combined forces of his training days in the Barracks and the Sentries targeting system quickly brought the Fade down.

He packed up and sprinted out of the room towards the other team. With a fleeting glance on Sarge's lifeless corpse he left the room in the hands of the cold and efficient machinery.
And Jeff, their veteran Commander.
He knew it would be safe. For a while, at least.