A new Firewall Zero Hour trailer is teasing the imminent arrival of a new DLC character. Although we don't have a name or description, the video teases the female contractor's loadout.
On the screens in front of the character, we can see blueprints for the following weapons:
G6 Commando Assault Rifle
XM-R 90 SMG
She also clearly has another handgun, though we can't see the description for it. The new character is "coming soon" as DLC.