Call of Duty: Black Ops 3 is playable at gamescom 2015, and it appears the gamescom build has new weapons and scorestreaks that have not been revealed before.
New scorestreaks listed include the Guardian, Hellstorm, Rolling Thunder, H.A.T.R., Power Core, and the G.I Unit.
New weapons shown off include P-06 Sniper Rifle, M8A7 Assault Rifle, and the Weevil SMG. In addition, a new tactical grenade called Black Hat was revealed.
SOURCE: hamburgerhaenger YouTube