Both contain dD guards, as well as tranquilizer-strapped lab techs. Use the Dragon to quickly clear each room. When there's a break in the action, move around the room pushing the green buttons. This will raise the containment units. When this is done, you'll likely have company again.
Guards come in every couple of seconds.
Just keep returning to the entrance to shoot the intruders. When all of the containment units have been raised, strap on the X-Ray vision. You are looking for evidence in the form of alien bodies. Move around the room, eyes trained on the central array. When you see the pale outline of an alien form, look at it for a few moments.