how many turns ? (ez newb query)

[cra2]

How does one determine the number of turns available in a given game/scenario?
At the bottom of the map window I can see the # of the turn we're on. But not how many turns are remaining.

SO I read the tutorial descrip and it doesn't mention # of turns.
I only see "10 turns" mentioned in the manual's walkthrough of the tutorial scenario.
But when I play the tutorial (as the Soviets), I get up to turn 15 and realize it's not the short little 10-turn tutorial I thought it was.

a) when browsing for a single-player scenario to play, where does it say how many turns are in that scenario?
b) where, in game, can you click to re-read the scenario and view the number of turns in the scenario?

Thanks,
cra2