Unexpected, William usually goes Massacre mode to rip off the A.A.H.W's Agents, Engineers bodies.

Until then, William stole a Sledge hammer from an Agent, and used his almost broken pipe on the agent's face.

Next, William used the sledge hammer on the agent's body and smashed it in half.

While Hank, he used a gun on an Agent in his previous room. Hank put the gun on the Agent's head when he's pinned down and forcefully pulls the trigger making the blood get stained on his face and mask.