Does everyone die in Metal Gear Solid 4?

* not all of them but most of them was killed by foxdie, heres the list of killed characters in metal gear solid 4 1-ocelot liquid is killed by foxdie at the end of metal gear solid 4 2-eva is killed by foxdie and it is mentioned at the final scene of metal gear solid 4 3-big boss is introuduced in the final scene of metal gear solid 4 and is killed by foxdie 4-major zero dies the final scene of metal gear solid 4 after Big Boss cuts off his oxygen supply