Nu har jag hunnit kika!
FB8.4 GUNS: All categories (C2.2) of Guns may set up in a FB Factory. A Gun may enter/exit a FB Factory via a Vehicular-Sized Entrance (using the Entrance’s movement benefits) or via another non-Interior hex of that Factory [EXC: B23.93]. However, entry/exit via a non-Vehicular-Sized Entrance is allowed only if being Pushed, in which case both normal building-entry Infantry MF costs and that Factory hex’s TEM apply as Manhandling DRM, even if exiting that Factory.
Svaret är alltså ”Ja”.