I play great campaign, 2 players.
Two questions about research technologies :
1. As the German player, I can select and research "Trench mortar" in september 1914 although this tech is only available in 1915! Same thing with all techs...
2. I played the centrale powers. Germany can select and research more than 2 Techs (I have selected 4). But in the manual, it's written "A side may have no more than 5 technology projects in research at the
same time. No more than two projects may come from the same nation."