I didn’t find those sections at the beginning of the game very fun, sort of a trial by fire. I think checkpoints or a save anywhere system would have pretty much solved it though.
IIRC the reason you were being stealthy is because the faction wasn’t supposed to know you were there. If you start blasting how will that work story wise?
They probably didn’t know how many players their servers could support. This was one way to find out.