@peek and I, through the wisdom of his autocorrect, have been talking about Fromsoft 3D Soldier.
So far we've remembered that it plays like a combination of Arma, King's Field, and Slaves to Armok: God of Blood. It was the first comprehensive soldier simulator of its kind, infamous for its punishing difficulty and in-depth gameplay. You create a soldier and follow him from recruitment to his inevitable death.
Even if you survive the war, get injured enough to be sent home, or get put on desk duty, you must still deal with physical and mental trauma, fill out tremendous amounts of paperwork, and supervise your soldier's body. The latter includes, famously, managing dioxin levels in individual organs accumulated during the extended "burn pit" sequences.
The sub-sub-subcontracted developers were based in Eastern Europe, and "all look like that one soldier in the trenches of Verdun."
