My Own Suit Became Contaminated Terrain | Military Sci-Fi Infantry Story for Sleep

Merrow-9 was built as an agricultural moon, but its west grow-belt has collapsed into black sludge, methane pockets, and airborne rot. Sergeant Ilya Marr leads a salvage infantry team into the buried evacuation ark beneath Grow Complex West to recover a hardened navigation seed that could give fleeing ships safe jump-paths through the system’s debris corridor.

The threat is not an army. Rot-spores dissolve plant matter and cellulose, feather-ghosts swarm toward warmth and breath, and boiling methane-makers turn pipes, vents, and sealed chambers into oxygen-starved firebombs. Every tool the team needs to survive — radios, weapons, cutters, engines, filters, even suit seams — gives the organisms another way in.

This is "Black Rot" by Sascha Schmidt