To make it as simple as possible to shoot, the arc projector has a single trigger that takes the weapon through three operations. It was created for field operatives who required an anti-geth weapon but found omni-tools too complex to master or too hard to fire in the throes of an adrenaline rush.

'Laser-guided lightning' is how Cerberus operatives sum up this unusual weapon developed for use against synthetic enemies. All prove deadly surprises for opponents who expect a disarmed Alliance warrior. Some troops integrate the weapon with their kinetic barriers, transforming the omni-tool into a wrist-mounted bludgeon others fabricate flammable gases, held in place by a mass effect field and ignited upon impact. More technically adept soldiers frequently modify their omni-tools to maximize stopping power through electrical, kinetic, or thermal energy. Warning lights illuminate the field so the searing-hot blade only burns what it is intended to: the opponent. The transparent, nearly diamond-hard blade is created and suspended in a mass effect field safely away from the user's skin. The most common melee design is the 'omni-blade,' a disposable silicon-carbide weapon flash-forged by the tool's mini-fabricator.

The need to take on multiple husks in close quarters forced the Alliance to develop ways to enhance the tool's offensive capability. Although melee-combat applications for the omni-tool are almost as old as the device itself, the feature was largely unused prior to the Reaper invasion.

Fallout 4 mass effect armor