[TokicMajstor]

That class should be a variable for player?
You can do it like this

Код:

new Variable[MAX_PLAYERS]; // this should be your class

public OnPlayerSpawn(playerid)
{

if(Variable[playerid] == 1) // if this is true it is gonna to do the following
{
    GivePlayerWeapon(playerid,24,50) // this gives weapon, 24 is id of desert eagle, 50 is ammo which is goona be given to that player
}
else if(Variable[playerid] == 2) // and now the same thing but this time if Variable is set to 2 and you should put another weapon here
{
    GivePlayerWeapon(playerid, 25, 50)
}
return 1;
}