TRUDGE FOR TURDA - DETAILED RULES AND GAME MECHANICS

[PrzemoC]

The part about Z-fire availbe for HMGs seems clear to me, but what about smoke screens avability?
I mean: infantry guns, mortars or even tanks may lay smoke screens similar to Z-fire within their LOS.
Is that tactic avaible during this campaign? I consider it realistic while direct-support, not laying smoke many kilometers away because of a single hex avaible in LOS.