The Wolf is a UK militarised version of the Land Rover Defender. Designated in service as Truck Utility Light or Truck Utility Medium (TUL/TUM), the TUL was based on the shorter wheel base Defender 90, whilst the TUM was based on the Defender 110.
A variant of TUM is the W.M.I.K（Weapons Mount Installation Kit) for use as reconnaissance and close fire support vehicles. WMIK fitted with roll cages and weapon mounts. Typically the vehicle will carry one 12.7 mm Heavy Machine Gun, 7.62 mm GPMG (General Purpose Machine Gun) or on occasion the MILAN ATGM, on the rear ring-mount, with an additional pintle mounted GPMG on the front passenger side. In late 2006, the MoD announced it was purchasing 40 new belt-fed Automatic Lightweight Grenade Launchers (ALGL) made by Heckler and Koch (HK GMG) that can fire up to 360 grenades per minute with a range of up to 1.5 km.; they are mounted on WMIKs in Afghanistan.