Hammerhead is a Datanet intel seen in F.E.A.R. 2: Project Origin. It appears in Michael Becket's PDA when he first obtains the Armacham HV Hammerhead, and acts as an introduction to the Hammerhead's stats.
THE ARMACHAM HV HAMMERHEAD IS THE SUCCESSOR TO THE HV PENETRATOR. FIRING HARDENED 14MM DEPLETED URANIUM SPIKES, THE HAMMERHEAD IS DEVASTATINGLY EFFECTIVE AGAINST ARMORED TARGETS. ITS STABILITY AND HIGH RATE OF FIRE ARE OFFSET BY ITS CONSIDERABLE WEIGHT.