You are in luck! Your surmise was correct - whoever rammed this iron monstrosity into the trench must have considered it to be of supreme importance and priority on the battlefield - and you are duly rewarded with the sight of a partially demolished command post, a tangle of sandbags, burnt planks and unspooled wires.
Upon the upturned iron beast
>>5685432stands a very peculiar individual, gesturing before it as if it were some monstrous altar. The man has the bearing of some sort of demented orator.