The factory issue Hemlok fires a three-round burst. While this can be a liability at short range, this tradeoff allowed the engineers at TW Ordnance to deliver a weapon with a good balance of long-range accuracy, damage, and fire rate.
The Hemlok BF-R is a heavy burst-fire assault rifle employed by both IMC and Militia forces fighting on The Frontier. Although not as commonly seen as the more standard R-101C Carbine and R-201 Assault Rifle, the Hemlok is still a relatively common sight amongst the hands of Pilots, Grunts and Spectres alike. Its integrated CPU can fire controlled bursts from two, three, five or to a full magazine dump in one trigger pull. Its bulk has been weighted specifically for recoil compensation, as escaping gases port from the multiple vents located near the muzzle. With ideal stopping power and a high caliber round, the Hemlok is a worthy choice of elite Pilots of the Frontier.
The Holographic Combat Optical Gunsight has an open sight picture, making it easier to acquire and track targets, particularly in the vertical. The gunsight is fixed at 1.85X magnification, and includes integrated ammunition readouts.
The Holosight’s optics are fixed at a 2.1X zoom factor. The sight picture is designed to induce a tighter visual perception, making it effective both at range and in close quarters. The Holosight is equipped with an integrated ammunition readout.
The AOG, or Advanced Optical Gunsight, is fixed at 2.4X magnification, and includes an integrated “current magazine capacity” readout with a backup numerical display. The AOG is ideal for combat at extended range.
The Hemlok returns in Titanfall 2 with an updated look. Several distinct
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changes to the weapon can be noticed, including a redesign of the barrel shroud and magwell. It can be unlocked at level 13 or bought for 100 Credits. It can be found in the hands of enemy Grunts in both Campaign and Multiplayer. It performs similarly to its Titanfall version, being a burst-fire assault rifle with high accuracy and a fast time-to-kill out of close quarters. As in the previous game, it is advised to bring a good close-quarters oriented sidearm like the RE-45 Autopistol.
The Hemlok BF-R most likely fires the same heavy 7.62-mm Round as the Spitfire LMG. Additionally, the Spitfire is named in game files as the "LMG_Hemlok".
According to artist Robb Shoberg, the model that would become the X-55 Devotion was originally submitted as a redesigned Hemlok. This, along with several visual similarities and the "HEMLOK MK.II" label on the Devotion suggest that the Devotion is a part of the same weapons family as the Hemlok, along with the Volt SMG.
The version from Titanfall may also bear inspiration from the M41a1 pulse rifle and LMG from James Cameron's movies Aliens and Avatar, respectively, going by the shape of its barrel shroud and magwell. These elements were removed in Titanfall 2.
According to Titanfall 2 concept art, its burst mode is computer controlled, allowing it to fire in 2-round bursts, more conventional 3 or 5 round bursts, or even dump the entire mag with one trigger pull.
The description for Titanfall's Hemlok states the manufacturer as a company called TW Ordnance. However, the one appearing in Titanfall 2, designated the M1A3, bears a Wonyeon Defense. It is possible that, given the massive differences between the two visually, the weapons appearing in Titanfall 1 and 2 are different weapons entirely and share only a name and function.