In Character: "This is probably our way out of this place, there is something to open, shall I open it?"
Out of Character: While we could have Seth and Artemis together with us exploring how will that be productive if we have to worry about them contaminating us at the same time? Let's get the place explored first and then we can decide what next to do.
In Character: "Come forward Gault, we aren't very far... You'll find us just don't turn left or right."
Major speaks on his comm, "Interesting, i've found a door here but I don't know what its about. Anyone near the native? If you are ask him what does the symbol on the dead end wall mean?"
After a pause waiting for feedback Major says, "We need to decide what we are going to open and how we are going to get Seth and Artemis cured".