[Alby Fire]

As the wiki says

pawn Код:

new Float:RandomSpawn[][4] = {
    {X, Y, Z, ANGLE},
    {X, Y, Z, ANGLE},
    {X, Y, Z, ANGLE}
}

Change the coordinates and add so many "{X, Y, Z, ANGLE}," as your random spawns number
Then put

pawn Код:

public OnPlayerSpawn(playerid) {
    new 
         rand = random(sizeof(RandomSpawn));
    SetPlayerPos(playerid, RandomSpawn[rand][0], RandomSpawn[rand][1],RandomSpawn[rand][2]);
    SetPlayerFacingAngle(playerid, RandomSpawn[rand][3]);
    return 1;
}