The Gunners are a well organized paramilitary mercenary band. They are the largest single unaligned force in the Commonwealth, acting independently of any government or governing power. They regularly make a living by plunder when not employed. They are well equipped killers-for-hire with their own customs and signage, who control numerous strongholds both in and around the Boston area. They were responsible for the destruction of the Commonwealth Minutemen as a combat effective force at the Quincy Massacre. In 2287, Quincy remains one of their key bases of operations.
Like raiders and the Capital Wasteland's Talon Company, Gunners attack strangers on sight. They differ from raiders in their lack of drug dependency, use of superior equipment (they often come equipped with military-grade armor and rifles), extensive use of laser and plasma weaponry, and employing other heavy duty military gear, including assaultrons, sentry bots, Mister Gutsies. Their commanders are even known to make use of power armor. Their patterns of speech and terminal entries also indicate they are relatively disciplined and well-trained. They place great emphasis on loyalty and do not tolerate insubordination. Raiders who join the Gunners may have difficulty adjusting to the strict environment and regimentation of being a Gunner, e.g. Tessa.
The Gunners possess functional Vertibirds, which permits them to employ vertical envelopment and air assault tactics, transporting two to four man strike teams with one or two attack dogs. However, these are a rare sight and appear to only be deployed south of the Boston ruins. Near the edges of the Glowing Sea, a Vertibird sighting is a harbinger of the BOS or a Gunner attack.
Many Gunners also get their blood types tattooed onto their foreheads by their medics. This is both a practical measure and a rite of passage. This can be seen on some, but not all Gunners.
The lowest of the gunners, the generic gunner is generally pretty weak when compared with their counterparts. Armed with low-mid level weapons like 10mm pistols and laser rifles, these enemies should not be automatically dismissed.
Gunner corporals are a high ranked variant of the low-ranking Gunners. They are usually seen in groups of other Gunners, mainly with other lowing ranking Gunners. While armed with automatic 10mm pistols and laser rifles, these Gunners shouldn't be messed with at a low rank.
Armored head to toe these enemies usually act as the final engagement for areas under Gunner control. Not only strong, these opponents rarely go anywhere without at least several strong gunner sub-types besides them. Found inside the HalluciGen, Inc. building.
Strongest of the Gunners. Encountered at a high level(96+). Turns invisible when combat is initiated by using stealth boys. They wear highly modified heavy combat armor and wield powerful modifications of laser weapons.
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Gunners, in some areas, will not openly fire on the Sole Survivor, though will appear hostile on the radar - instead they will warn them to back off, if the Survivor ignores them and approaches then they will become hostile and attack.
Gunners will occasionally attack settlements owned by the Sole Survivor.
Two Gunner Mercenaries can be found protecting the trader Dreth. They are non-hostile.
Gunners are commonly found wearing army fatigues, dirty army fatigues, green shirt and combat boots, and military fatigues underneath combat armor.
The Gunners are much like the Capital Wasteland's Talon Company, being unscrupulous mercenaries who will take any job if the price is right.
It is hinted at that the gunners originated from the children from Vault 75.