Army families I NEED advice :(?

What should we do about obnoxious neighbors in our building? We are on the middle floor and its been Hell since we got here :( the people upstairs have no shame whatsoever they have sex at all hours of the night sometimes right up until pt at 5 am... Im not against people having a healthy sex life but she screams and moans so loud that sometimes it echos in our parking lot :( its obvious that she is faking. Its so akward for us because between listening to her moan, the dirty talk, and the bed which sounds like it will fall through the floor on top if us we are up all night and get no sleep. One time i didnt get to sleep until they both left for PT and my poor hubby had to start is day off with no sleep :( the people downstairs fight and yell at each other all the time. They are doing it right now. Its so loud i try to fall asleep with my ipod abd still here them. Ive done everything to make them aware that i can here flushed toilets coughed stomped on the floor slammed windows, they dont even seem phased neither the top floor or the bottom. Im sick of feeling like a prisoner in my own home. We have to live here for another 2 years. This noise occurs anywhere fromm 11pm and all through the night until morning. Last night they were hammering something into the wall at 1130 and thenfighting about how straight it was... My neighbors upstairs are both in the army and both get up for pt around 5 am they blast music (usually rap grrrr) and i get very frusterated because not everyone has to be up at 5am to start their day. To top it all off they both have a child. The people upstairs usually wake their baby from their loud sex noises but they leave him in his room to cry and scream while they continue their fun. Im going crazy!!!! Are their usually quite time hours? And how should i approach this situation. Should i call MPs? I feel awkward calling and explaining my neighbors are having animal sex and keeping us up. Does this commonly happen in army housing? Am i not alone