The lighting system is top-notch, I was shocked at how good the game looks. The gameplay is tense and difficult, the sound design is suffocating and appropriately jumpscare-y. In general, the game maintained a brutal atmosphere throughout, well done (showing the names and dates of birth of the fallen soldiers is a nice, somber touch).
Only downside I found is a bug, where after dying in a trench, you spawn in the trench with no way out.