The Marine Ready Room can be seen briefly in Daybreak, Part II. Lee Adama and at least 18 Marines possibly officers and higher ranking enlisted men and women being briefed on the plan to attack The Colony.
Description
It appears that it is in an enclosed area, possibly the Brig. It has two Gateleg tables along with steel frame chairs.
Unlike the Ready Room the Marine Ready Room appears to be more low tech and not as luxurious.