Panam and the Aldecaldos
This ending includes more conditions than the previous one. Then you have to have reached the end of Panam's quest line after the obligatory section, this involves helping him each time and encouraging him to join his clan. You may or may not develop a romance. The important thing is to have passed the section aboard the Panzer Basilisk.
Once on the roof with Johnny choose to ask for Panam's help. The rest is pretty straightforward until the very end after the boss. Once again you will have to choose between 2 options, the 2 will earn you a different trophy. You can either leave your body to Johnny or decide to keep it and get away with the Aldecaldos. In this case you will receive a legendary Aldecaldos jacket when you return to town.