I was sure the rule for two people per vent entrance was in relation to tubes and vents, places where there was more breathing space and could fit more people were exempt from this rule. I thought it was created to protect the humans inside from overcrowding as to many people is suicide. This rule taken as 2 people per crouch entrance, regardless of the size of the chamber and the passage would counteract rules that already exist, such as roy the ship where the rule specifically states that 4 people are allowed whereas there is only 1 crouch entrance to the location. Areas such as under the moniter are not vents and should not abide by a rule that is specific to vents and tubes, areas where only 1 person may enter at a time and remain in the same order as they entered with their sides touching the walls and ceiling.