I was just playing and i found a total of five radios:
1. In between the 2 barricades to the left of the stairs of lunar lander A.
2. A caged box near the tank dempsey doll behind the truck.
3. In the spawn room, right under the teddy bear with the sickle is a caged little cart. The radio is wedged in between that cart and a barrel on its right side.
4. In the PaP room. when facing the PaP machine, look to the right side window. To the right of that window, laying on a few pipes is the radio.
5. This one is obvious, but no one ever really noticed it. it is right next to the Nikolai doll, which is near the speed cola.
Now onto part dos. After throwing my Gersch at the generator outside of the map near lunar lander A, the operator said "Need more power, error." Right after that, the guy from the beginning of the map who said that we need to "fix the mechanism" came on and said "Yoou did it! now we just need more power!" I went to the terminal under the metal walkway which is in the same room as lunar lander C (i think, its the one near stamina up)and held X on the tv screen. The same "real" man then said "We still need more power. Wait. Wait, what are you doing?!" Dempsey then said "Well, i guess theres three more then." Im guessing that the man on the PA was being attacked by samantha.
Well anyways, i searched for about 2 hours for another piece of the puzzle, so now i leave it to you guys. Have fun!
EDIT: And you can also blow up the rocket. I saw a video and decided to try it myself. I had a ray gun and shot it at the rocket about 20 times at various places before i launched it. I then set off the launch sequence and shot it again with the raygun till the rocket blew up. I dont think you need to shoot it before it launches, but i did it because i didnt want to start over and try again. I havent tried it with any other gun either.
