Frank Horrigan Frank Horrigan is the Enclave ' s finest instrument of warfare , the final boss , and main antagonist of " Fallout 2 " . Described as a kind of " ultra super mutant in power armor " , having been witnessed laughing off plasma rifle fire and ripping deathclaw s and armored humans in half with his bare hands , he is one of the deadliest entities to have walked the Wasteland . Background . Horrigan is a huge man - like armored figure , born in 2211 . Originally a Secret Service Agent for Enclave President Dick Richardson , Horrigan was sent out with several other teams to search for slaves for use in excavating the remains of the Mariposa Military Base . In September of 2236 , scientists unearthed the F . E . V . and mutations began to occur amongst those who come in contact with it , including Horrigan , who was quickly transported back to the Enclave for further research . Sometime between 2236 and 2238 , Frank Horrigan underwent his transformation into a super mutant . During this period , he was kept under heavy sedation and operated on by Enclave technicians and scientists under the directions of Dr . Charles Curling . Following testing in January of 2239 , it was decided that Horrigan should be activated for field operations . After a series of successful and bloody missions ending in March of 2239 , the Enclave created a modified version of power armor specifically to encapsulate Horrigan ' s bulk . From this point forward , Frank was " married " to his suit . He could not be separated from it as it continually pumped him full of drugs , acting as a " life support . " Horrigan was eventually defeated in 2242 by a tribal known as the Chosen One . Despite being literally torn in half at the waist , Horrigan was able to gather enough strength for some final words . Though he claimed to have activated the Enclave Oil Rig ' s self - destruct mechanism , this appears to have actually been a bluff . The reactor meltdown triggered by the Chosen One destroyed the oil rig and all traces of Frank Horrigan . Characteristics . Horrigan is a mutant , but he had been a monster before his exposure to FEV in the military base , as he had many psychological problems . It is important to note that Horrigan never considered himself a mutant ; only the scientists at the Enclave would have considered him one , but they mostly referred to him as an " experiment " , and even then , not to his face . Most soldiers considered Horrigan a walking nuke , something the tech boys built , and they were not generally aware of his mutant status . Most did consider him a freak , and there were few soldiers who wanted to accompany him on missions . Horrigan ' s loyalty to the Presidency , the Enclave , and the armed forces was present before his exposure to FEV , and it was reinforced by Presidential Directive through various conditioning and testing programs developed by the Enclave . Horrigan ' s low intelligence ( which was further damaged by the FEV exposure ) made these conditioning programs take root easily . Standing more than 12 feet tall , Horrigan is significantly taller and bulkier than a standard super mutant . His FEV mutation was further augmented with controlled injections of an experimental modified version of FEV developed by the Enclave , resulting in Horrigan being a " next - gen " super mutant - stronger , faster , tougher , and just plain meaner . Additionally , a special suit of power armor was cybernetically grafted onto his body , transforming him into a walking death machine without peer . Cybernetic elements include bionic eyes , arm control mechanisms and leg rotators . Although of generally low intelligence , Horrigan noticeably lacks the simple - minded " moronic " mental deficiencies that commonly plague many super mutants such as Harry . For example , Horrigan speaks in complete sentences , using normal grammar and vocabulary , and generally lacks any obvious signs of mental deficiency . Horrigan most likely mimics the speech and mannerisms of his Enclave creators and propaganda programs he heard . Gameplay information . Horrigan has 999 HP , and is equipped with two unique weapons normally unobtainable , an End Boss plasma gun and an End Boss knife . He is also very fast , having a great amount of AP ( being able to attack several times per round ) . If his weapons are disabled ( either due to running out of ammo , or if his limbs are crippled by repeated aimed shots ) Horrigan will engage in hand - to - hand combat with his enemies to the death . Normally , he continually fires his gun until he runs out of ammo , at which point he changes for his knife . Additionally , Horrigan ' s armor grants him high resistance against small arms fire , explosions , and laser and plasma bolts , but is somewhat vulnerable to electricity . This special cybernetic armor , which makes him extremely hard to kill , even relative to his high number of hitpoints . Appearances . Frank Horrigan is the final boss and antagonist of " Fallout 2 " , who also appears in a special encounter early in the game killing some defiant " peasants " and is also seen killing Brotherhood of Steel agent Matt in a cutscene in the San Francisco Brotherhood outpost if the Chosen One accesses the ACE computer terminal and asks what happened to him . Analogously , another scene of Horrigan killing deathclaws can be seen in Vault 13 after the Enclave raids it a second time . He was a talking head voiced by ( who also voiced Marcus ) . Bugs . In the SFall 3 . 2a version of " Fallout 2 " ( shipped with the game if purchased from Steam ) , Frank Horrigan may be completely impervious to damage dealt by the Chosen One during the final battle , only receiving damage from the turrets and Granite ' s squad if they are made friendly . It is unknown if this is an avoidable glitch , or a permanent glitch with the game ' s version .