So, I'm still a bit new to 40k RPG; I have a lot of their books, now, but no experience playing it, and Rogue Trader has thrown me for an especially irritating loop. While I could see some interesting options for playing Empire Builder, teleporting your DW-style Hordes of troops down to worlds, to fight other hordes of things, and could easily see characters having in-depth social interactions, how much combat can these characters participate in? Armor and Toughness are nice, but the best armor actually makes you easier to hit (by upping your Size), and Humans are squishy. The most important character, the Rogue Trader (assuming he isn't benig NPC'd, for some reason), has the Warrant, so his death would be worse than "oops, your character is dead, so make a new one", and your group/his line could end, or have to go to some other guy, while your Navigator is vital for travel; unless you have several on one ship, or can fleet-jump in RT, your Navigator would be ill-advised exposed to combat. The same could be said of your Astropath. I see that they could be battle-psykers, but if they die, and you don't have a whole choir on one ship, your distance comms are down. Of the various RT character types, it seems several are good character options, but too important to risk on firefights, which are themselves often tricky to predict, so half of the characters could have to stay on the ship, and not really be playing.
How much am I overanalyzing this? How might other GMs of Rogue Trader balance character play/fun with character type/value? Thanks much.