[1] The regiment's current mission task is to provide direct fire support (DFS).

Members of the regiment are trained in the tactical and strategic employment of various company-level heavy weapon systems, including the Browning M2 heavy machine gun (HMG), the C16 Automatic Grenade Launcher System (AGLS), and the BGM-71 tube-launched optically-tracked wire-guided (TOW) antitank guided missile (ATGM) to provide DFS to a manoeuvring battle group.

The 75th (Mississauga) Battalion, the predecessor to The Toronto Scottish Regiment was raised on July 1, 1915, by Lieutenant-Colonel Samuel Beckett.

Over 5,500 soldiers served in the battalion during the First World War, of whom 1,049 were killed, including Lieutenant-Colonel Samuel Beckett.

[2]During the Second World War, the regiment initially mobilized a machine gun battalion for the 1st Canadian Infantry Division.

[3] The armoury is a green building, earning a Leadership in Energy and Environmental Design (LEEDS) silver rating.

The regiment contributed an aggregate of more than 20% of its authorized strength to the various Task Forces which served in Afghanistan between 2002 and 2014.

In September 2009, the museum was relocated to the Captain Bellenden Seymore Hutcheson VC Armoury in Etobicoke and officially re-opened on 1 May 2010.