Created during the Chimeran invasion of the United Kingdom, Howlers are a specific breed that were similar to those of quadrupedal animals such as lions and tigers. Utilized to wreak havoc on British lines, Howlers have additionally been known to emit a considerable ability to communicate through its rudimentary and primitive vocalizations. Aside from communications purposes, this howl has been known to have had a major psychological effect on British forces, largely as their calls have been heard from miles.
Largely due to their canine-like appearance, it can be presumed that they were created from ordinary animals that had been infected by the Chimeran virus or had been purposefully bred like the Widowmaker. Regardless, their conversion has had a major effect on their bodies with their skin having been enhanced to sustain multiple shots. British forces have learned that shotguns are effective in eliminating these creatures quickly, and have equipped patrols with Rossmore 236 combat shotguns in areas with known Howler presences.
Enhancing the theory of infected canines, British forces have noted that Howlers often serve as "watch dogs", often guarding sites with a sizeable Chimeran presence.
The Howler's eyes are noticeably different from that of ordinary strains of the Chimeran virus. Their eyes are orange or red in color, rather than the bright yellow found in other strains. Also, the pupils are horizontal and figure-eight shaped, instead of the vertical slits present in Hybrids and other common strains.
First encountered in Manchester, the first Howler is seen guarding the entrance to the Cathedral, attacking Nathan Hale and the remaining British troops. The Howler is eventually eliminated as the squad enters the Cathedral. Shortly after an ambush by hoards of Leapers and Steelheads that kills off the British troops, another Howler attempts to ambush Hale before being quickly eliminated.
In The Gathering Storm Howlers appears in the Chimeran invasion of America in late 1951, also serving as scouting units much like regular military dogs. It is surprisingly revealed that a single known Howler named "Ralf" is able to be tamed by a woman named Spook in Chicago. It is explained by Captain Bo Richards that Spook found Ralf who was wounded and nursed it back to health, and in return it serves and protects Spook. Ralf also helps Nathan Hale by mauling a charging Steelhead. This signifies that it is possible for certain low status Chimera to rebel against higher ranking Chimeran strains such as Angels. Or that a certain part of the Chimeran brain registers the telepathic command, and this was damaged when Ralf was wounded and became feral.
- The Howler isn't particularly fast, but they usually charge straight for the player. The Howler's thick leathery hide allows it to survive light-arms fire. However, weapons such as the Rossmore 236 are known to be very effective in killing these creatures. On lower difficulties and if the player has the ammunition to spare, any weapon will do against the Howler, at a distance.
- On normal difficulty, killing a Howler requires about 40 rounds of Bullseye fire, or roughly an entire 50 round magazine of M5A2 Folsom Carbine fire.
- The Bullseye's secondary fire is very useful against Howlers; after tagging them with a target dart, you can circle strafe around them while firing at them without worrying about aiming precisely at them. However, since they mindlessly charge at their victims, it is also a workable strategy to simply spray and pray with this weapon.
- If the player kills a Howler using a grenade, they will be rewarded with the "Fetch" skill point.
- On a higher difficulty the player may have some trouble trying to take down a Howler using the Rossmore 236. Try using a combination of the Rossmore 236 and the Bullseye's secondary fire, while running about firing. If the beast gets to close, whip out the Rossmore and shoot at its head. Using the M5A2 Carbine's grenade launcher is also more effective against the Howler.
- Grenades can help to soften up these beasts before using guns on higher difficulties.
|“||Howlers are a large quadruped strain of Chimera. Their rudimentary vocalizations are believed to provide the beasts with some level of communication. Their calls can be heard for miles and have a chilling effect on those familiar with the source. Howlers have a leathery hide that shrugs off most light-arms fire. Combat shotguns at close range have proven highly effective.||”|