Descriptions of the rooms from the map
Cable car where you start atfer completing your trip from the lab. A dead soldier has a Magnum on him.
Area with stairs and herbs. The western stairs lead to (M5,3).
Stairs connecting floors 1F and B1 (M5,2).
Large room where you initially find a small elevator travelling to floor B1 (M5,5).
Later on you can summon a large elevator from the control room (M5,7) and it travels to floor B4 (M5,8).
Balconies and an elevator which travels to floor 1F (M5,4).
Area with the factory key. You will be attacked by hunters after taking it.
Control room with a typewriter and some supplies.
After you've collected a key in (M5,6) you can use it to summon a large elevator to (M5,4).
Area where the large elevator ends its course. You activate it in (M5,4).
There's a key here for another elevator - (M5,9).
Area with a new elevator - a key is needed from (M5,8).
An attempt to use the elevator will trigger a boss battle with a Proto Tyrant.
An elevator which travels between four floors:
Lv1 - tunnel with the wreck of the train in the training facility (M2,36)
Lv2 - floor B1 of the factory (M5,11)
Lv3 - current location (floor B4)
Lv4 - Treatment Plant (next big location) (M6,1)
Elevator - you can get here by choosing Lv2 in (M5,10).
Balconies guarded by a hunter. You can collect Magnum ammo and unlock doors to (M5,2).