I read the first chapter of Calamity Trigger.
Did not quite expect the MC to die in first episode, to be honest, and I think it's also good when the MC knows who killed him and why. It raises the question, "then, what?" Which may tempt reader for next chapter. This is a good choice.
By the way, did I find a pattern from beginning of both your stories? Sure everyone has preferences, but be careful from getting too guess-able by the readers.
I have no idea how high Vince's position is, but considering he couldn't find out Marcus as traitor for years actually raises a question for me. I still have no idea whether he's smart, strong, or just previous leader's son who actually not capable in his position. Just a suggestion, maybe a bit hint in the first chapter about his actual positioning (like a smart leader, or the second man?).