The Fully Integrated Security Technotronic Officer (abbreviated to "Fisto" by the Courier for convenience) is unique, and the only intact protectron robot located in the ruins of Cerulean Robotics. Fisto can be reprogrammed to serve as a sexbot for the quest Wang Dang Atomic Tango, in which James Garret asks the Courier to find a sexbot for a "customer."
Fisto has significantly more health than a standard protectron. However, unlike other protectrons, Fisto's built-in lasers are not in an operational status, thus forcing him to rely on weak unarmed punches to inflict damage. As he suffers from a protectron's slow walking speed, this severely limits his ability to engage in combat.
James Garret's dialogue suggests that he has always wanted a sexbot, therefore Fisto may be for his own personal use.
If the Courier has the Animal Friendperk, the giant rats that inhabit Cerulean Robotics will not be hostile towards the Courier, but will be hostile towards Fisto. Fisto's weak offensive capabilities might not be enough to defend himself against the rats. Killing a rat will not prompt any of the others to become hostile to the Courier, unless they were hurt indirectly by an explosive.
Even after giving Fisto Ralph's Sexbot Programming, if you talk to it while it is walking, it will still say "Protect and Serve!"
Fisto informs the Courier that he will need upgrades to boost his "performance" capabilities. No such upgrades are available, though.
If the Courier reaches the Atomic Wrangler before Fisto, it will appear right behind him/her and sometimes will say "Please assume the position", though this is very rare.
ps3xbox360pc After recruiting Fisto and returning to the Atomic Wrangler, speaking to it and declining its services will give the Courier 10 caps. This can be done as many times as desired. While only a small amount, it is a very convenient source of caps to gamble in the casino. The reason to this bug is that the answer he gives for declining his services is the same as the one he gives when the PC asks for a refund. [verified]
pcxbox360ps3 The Courier can program Fisto even without the holotape from Ralph in their inventory. After programming the sexbot, the holotape is still obtainable. [verified]
ps3 If the Courier talks to Fisto after telling him to go to the Atomic Wrangler (before he reaches it) he will say "protect and serve" in a very sharp or acute voice. On the other hand, if you try to pickpocket him, he will say "protect and serve" but in a deep voice. [verified]
ps3 It doesn't matter if the Courier is standing or crouching; Fisto will say "protect and serve" in a similar manner to Primm Slim, or in the regular Protectron tone. [verified]
pcxbox360 After having sex with Fisto at the Atomic Wrangler, the Courier will be able to ask for its services. But when you enter the bedroom, your only option will be giving up on sex and getting a refund. [verified]
xbox360pc Sometimes, Fisto won't activate even though the Courier has successfully hacked the computer. Since no other options are available, you might have to reload a previous save. [verified]
xbox360 Occasionally Fisto will not move after he is programmed, but when you reach the Atomic Wrangler he will be there. [verified]
ps3 Once Fisto has left the building, if the Courier tries to head to the Old Mormon Fort the game may start lagging heavily and eventually freeze, forcing you to restart the console. [verified]
ps3 Solution: Heading through a door leading to Freeside first and then heading to the Old Mormon Fort. This should prevent any lagging or freezing. [verified]