So (5) game sessions in, and the players have started to bring along extra npc security forces from their ship in the last 2 sessions, there are (6) players. I am concerned they are trying to bend the rules or nature of the game (centered around their actions). I have a few questions on the matter, looking for some guidance on how to deal with it:
1) What is the best way to deal with/counter the squad(s) of security forces the players are starting to bring with them?
2) Is there a viable way to prevent them from bringing extra forces with them?
3) If this is "normal" in Rogue Trader, what is the best way to deal with combat situations since rolling every NPC's action can bog the game down?