[bajskorv123]

I made a little base for it, hope it helped

pawn Код:

//Above main()
new Hacker[MAX_PLAYERS];
new Class[MAX_PLAYERS];

//OnPlayerRequestClass(playerid, classid)
Class[playerid] = classid; //Assigns Class to the classid

//OnPlayerSpawn(playerid)
switch(Class[playerid])
{
  case Id:// If the spawned player has the hacker class id, make them a Hacker.
  {
    Hacker[playerid] = 1;
  }
}

Help with classid:
Your first

pawn Код:

AddPlayerClass()

On GameModeInit() is classid 0
Your second

pawn Код:

AddPlayerClass()

On GameModeInit() is classid 1
Your third

pawn Код:

AddPlayerClass()

On GameModeInit() is classid 2
And so on. Hope this helped