
Sentry bot ( Hardened sentry bot, RY-589 Ultimo bot ). Robo-scorpion ( X-42 giant robo-scorpion). Protectron ( Bohr, Fisto, Primm Slim, Protect-O-Bot, Vendortron, Sunset Sarsaparilla security, Construction drone foreman, The Custodian ). Mister Orderly ( Doctor Orderly MD PHD DDS ).
Janitor, PYTHON, Rhonda, Tour guide, Unit 462, Sparks )
Mister Handy ( Crazed Mister Handy, Mr. Mister Gutsy ( Hardened Mister Gutsy, Mr Steel, Ironbelly ). Maintenance robot ( Mobile facial recognition scanner). Eyebot ( ED-E, ED-E, Medical eyebot, Repair eyebot, Sunset Sarsaparilla eyebot). Sarge will proceed to attack the Minuteman operating the radio tower.
Convert the rubble into concrete and the stairway will be cleared. Walk to the room with the rubble blocking the stairs.
It is possible for Sarge to follow the Sole Survivor out into the castle courtyard before they meet Ronnie Shaw. Even if Sarge has been hacked into a shutdown state, or given friendly commands, it is impossible to continue the Old Guns quest with him still alive. This will turn it instantly hostile to Ronnie, though not to the Sole Survivor. If hacked to be given friendly commands Ronnie will still fire at Sarge. Talking/hacking Sarge after the initial hack can prevent this, allowing you to effectively control Sarge. However, he may tell the Sole Survivor that his Minuteman database is corrupted and will enable his defensive protocol, essentially rendering the hack moot as he will turn hostile. If one has upgraded the Robotics Expert skill one can initially prevent Sarge from turning hostile by hacking him before he has deployed fully. This can drain health fast, sometimes faster than a stimpak can heal the player character (depending on game difficulty settings). Sarge can corner the player character and will keep on using melee attacks. If one defeats Sarge before starting Old Guns, Ronnie Shaw will mention that she is surprised Sarge is still down there, as well as the fact that she felt sorry for whoever woke him up.