The day we meet them they're in a recently liberated area in eastern Ukraine. Artur says their task is to ensure that no dead body is left behind on the battlefield. The ground is scarred with rubble, abandoned trenches and deep shell holes. They've been told there are several bodies lying somewhere in this scene of apocalyptic devastation.
There's still the sound of fighting in the distance. Artur says they're well aware their job is dangerous, but considers the risks justified "because the most important thing is to take out the dead from this terrible war".
They open the door of their white van, marked with a red cross and the number 200 - the military code for transporting dead soldiers. There's a sickly smell of death when they open the back door, and the sight of maggots on the floor from bodies retrieved earlier in the day.
Artur and Denys have been told there are several more bodies nearby, but they now have to find the location. Denys launches a small drone fitted with a camera to scout the area. They're not just looking for the bodies, but also for signs of mines. One of their team was recently injured by one. It's a constant hazard.
The day before, a Ukrainian military engineer tells me that he thinks there are around 100,000 mines in the recently liberated areas of Eastern Ukraine. It'll take a long time to clear them. The engineer says that, as a rule of thumb, one year of fighting equates to five years of de-mining.
After flying the drone for about 20 minutes, Artur and Denys think they've identified a likely location. It's a bombed out building next to a destroyed railway siding. They put their helmets and body armour on and make their way carefully through the rubble.
Inside the collapsed structure there are the charred remains of three bodies. At first it's hard to distinguish the human remains from the burnt-out timbers. Slowly Artur and Denys begin to identify bones. They carefully comb through what's left - looking for any signs of identification.
Small pieces of ceramic body armour plates also tell them these three men were fighting for Russia. There are a few other personal items they recover from the ground including a pair of spectacles. Each is photographed and placed to the side. They will be returned along with the human remains - carefully placed into body bags which are then loaded into their truck.
When they recover Russia's dead he says "there is a clear understanding that they will be exchanged for our deceased and our deceased will be buried with dignity in Ukraine". It's the Red Cross who facilitates the exchanges between countries.
They've experienced more death than life over the past year. Artur accepts it will eventually take a toll on their emotional state. But he adds, "I understand that we are doing a good job and this motivates me a little and gives me faith that the war will end soon."