On the far edge of the circular ventilation walkway, you can see an individual wearing an iron mask, not too dissimilar to the previous Chain Mask
>>5684329 you retrieved from the Trench. You think this individual is an Engineer, and his attention is currently engrossed in some damage repairs on the other side far away from you. The Engineer is carrying a Borchardt pistol
>>5704629 He is flanked either side by two more assistant Drudges, who also carry implements similar to the Trench Axe.