Reagan fired quite a few shots, some real, some symbolic, some threatened, some not even literally his, in Africa, in Afghanistan, in Latin America, in invading Grenada, in Britain’s surprise defense of the Falklands, in having 550 thousand troops in Europe, in moving the short range missiles to Europe.
Some literally involved shots, and most didn’t, but it was clearly extremely aggressive, and displayed a willingness to fight.
It was the military toughness and the military build up that broke the back of Russia, they lost the window for attack in 1985 and knew that the window had been closed for the foreseeable future, and that led to internal instability, mixed with the fact that they didn’t have the economic power to counter Reagan’s global aggression and America’s new global forcefulness.
Reagan’s strength, went from appearing to look like a path to WWIII, to revealing the cracks in the USSR, and eventually it crumbled from attacks on multiple fronts, internal, economic, military, sociological, it just became too much to hold the empire together.
The bottom line is this: America won the Cold Ward because of (1) Ronald Reagan and (2) U.S. economic power.