Ok, I don't have the book on me, but I think it says that you have to deploy more than 18" away from the enemy at the beginning of the game. Technically if you deploy more than 18" away, even a fraction of an inch, then you wouldn't be able to shoot on the first turn.
Sabe means that if you keep out of sight for enemy units while deploying your scouts, you can deploy as close as 12" away from them, making you, when running in LOS within 12" to use the pistols. However, deploying so close is almost only limited to tables with loads of cover.
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