Let me go through the start of the second one again now that my memory is fresh of the ending of the first game ( sorry memory is bad lol) and I'll be able to answer the 3rd one if there is and discrepancy like I said just want to double check all the info before I potential make an idiot out of myself lol
okay so this is what i have seen so in the ending of the first you break out of the tomb before Ishets younger sister shows up and has necrona dig up all the graves and i guess that was all i thought there was more but going back through the second games beginning that was all that did not quit line up with the first game that was all
also speaking of the alternate ending will that tie into the second game at some point like depending on what ending you got in the first game it carries over and changes how the second game starts that would be pretty cool in my opinion