I bought my ks piece 2nd hand with several addonds, but with the primus boss and cybernetic onslaught expansions there are no rules inside how to use/play them. On the ks page in the banner it says that both come with rules and the onslaught also comes with missions, but they were not included . On the grimlord website is that not mensioned in the content of the add ons.
I asked the person who I bought from in advance and he said there were no rules in when he got it.
Did I miss something in the rule book how they should be used in scenario's (I downloaded the latest new from the grimlord site already)?
In order to make time for writing I must give up working or gaming...
I can't tell you about the missing Primus Mission but the main rulebook contains a Campaign based around the Sentries from Cybernetic Onslaught and a mission based around the Primus - these missions are not fully playable if you don't have the expansions.