[Rules] 16.1 Smoke

[pmaidhof]

I'm a recently returnee to PG and have a quick question as to the availability of smoke. 16.1 Special Rule/Smoke opens with "In some scenarios players may fire smoke." Would this capability be found in each scenario's special rules? I quickly scanned Kursk Southern Front and Battle of the Bulge and did not find an answer.

It would seem like too much to have the ability to fire unlimited smoke.

Thanks in advance.

Pete