Uhura will use her detector to see if there are any dangerous chemicals in the room. If there aren't we will proceed to investigate it.
We call Greg in signalling its safe. After Greg comes in and tells us about the place Major will follow the footprints and Karol to see where they go.
We agree to check out the lower levels but Major first wants to check out where the tracks go outside.
We ignore the footprints and ask Greg to show us the way to the lower levels. We will proceed cautiously and with weapons ready.
We pause for a bit to get our new comer healed and warmed up. In the mean time we ask Greg what we should be expecting below since he has been here before. Also if he has a schematic.
Josh will stay with Greg to keep an eye on him, we're suspicious about Greg.
Uhura asks for a detailed explanation of the map, if we can see one too that will be great. The rest of us will then keep on our environment suits and go down with weapons drawn, usual detection, etc.
Greg continues to stay with Greg making himself something to eat / drink in the mean time.
Rest of us keep our environment suits on and we will head down the ladder with me first using the detector. We'll then go to each door stand on either side with guns ready as we open the doors.
Josh will ask Greg for a water tap or open the gates to collect snow.
The rest of us will check the east, west and then north doors.