felher: es must mindestens eine Shussart ausgewahlt sein
Was ist Shussart?
Ich überprüfte die Einstellungen nach einem anderen Spiel-Set und ist in Ordnung

p.s. Leid, dass ich es zu einem anderen Thema, erkannte ich es bis jetzt

Schussart = kind of shot

I suspect you have to chose between "armed shot" and "automatic shot" somewhere.

I must set "swipe". Thanks for your help ;-)

"Schussart" could be translated with "firing mode". There's automatic, spontaneous and precision firing, ordered by the amount of time units they use and how accurate they are. There are three other firing modes for melee weapons, but instead of being more or less precise, the attacks do a higher or smaller amount of damage, or so I think.

When you switch the weapon type to melee, you have to reselect the firing types. As long as one of the checkboxes of the firing modes of melee weapons is activated, the weapon can be used.