its possible to enter. difficult not to smash into the two missile launchers + 2 anti missile lasers. theyre right under the exit\entrance of the runway. with not much space allowing for error. the very backend of the runway is directly under mountain material. unseen by the naked eye outside the base, it has a very high incline accelerating at 10MPH- backwards. much height is available in the backend of the runway. but the other (actual runway) section of the base has a very low height available so big airplanes isnt an option. medium sized aircraft are an extreme in the interior of the runway. not much inside. however there is a cut in section in the very back of the runway left of the space. i believe that might be an expanded exit\enter part of the runway base? not much to see though. the windows arent there in the inside of the base unliek the outside.

HOW I GOT IN:

i smashed the green \ black default plane in the mountain space above the base. the cockpit landed inside the back of the base because when i crashed, i broke into the mountain and fell inside. soooo yeah landing wasnt an option lmfao.