[s4kuL]

Try

pawn Код:

CMD:setlevel(playerid, params[])
{
    new id, level;
    if(!IsPlayerAdmin(playerid)) return SendClientMessage(playerid, -1,"SERVER: You must be an admin.");
    if(!IsPlayerConnected(playerid)) return SendClientMessage(playerid, -1, "SERVER: Player not connected.");
    if(id == playerid) return SendClientMessage(playerid, -1, "SERVER: You cant set yourself an admin. Use /setadmin.");
    if(sscanf(params, "ud", id, level)) return SendClientMessage(playerid, -1, "Usage: /setlevel [id] [level]");
    if(level > 5) return SendClientMessage(playerid, -1, "SERVER: Level is too high. [0/5]");
    PlayerInfo[id][Admin] == level;
    return 1;
}

Change the PlayerInfo for you info ofplayer..
if i help give me rep