[Mobhack]

And given the 10 hex range, it is likely a local name for ex-British 2 inch mortar.

And the main unit using it appears as one section in a platoon (formation 196, used in coy 195) - echoing the UK practice of issuing one per platoon HQ as a pyrotechnics discharger (smoke and illum) rather than as an HE chucker (2" HE being available but rarely issued in practice).

Andy