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The Boost Machine Gun is one of the BLADE modes Sam Gideon can use. It is part of the Tri-Weapon pack DLC, which the PC version comes bundled with. It has an olive-green colouration and appears with an orange outline in the environment.

The magazine is small, but since it has comparable ammunition reserve to the Heavy Machine Gun, the boost machine gun is a good complement for the Assault Rifle and heavy machine gun. As your magazine runs dry, switch to another weapon and your volume and rate of fire remains constant. The weapon's most noteworthy quality is that it can penetrate floors, walls, and obstacles up to a certain thickness at upgrade level 6. This means the Chicane (wall making robots) and other enemies who take cover can be shot without needing to flank or wait for them to stick their heads out of cover.

After three upgrades, its scope becomes larger, after six, a reflex sight is placed on top of the scope, and when fully upgraded, the barrel is lengthened.

Its melee attack is a single left uppercut.


Field Rating Lvl 1 Lvl 2 Lvl 3 Lvl 4 Lvl 5 Lvl 6 Lvl 7 Lvl 8 Lvl 9 Lvl 10
Rounds 250 275 300 300 325 350 350 375 400 425 425
Magazine Capacity 15 15 15 18 18 18 18 18 18 18 18
Power B B B B B B B B B B A
Range D D D D D D D D D D D
Rate of Fire B B B B B B B B B B B
Accuracy B B B B B B B B B B B
Scatter B B B B B B B B B B B
Penetration + + + + +