[RajatPawar]

pawn Код:

new gNames[MAX_PLAYERS][MAX_PLAYER_NAME] ;

COMMAND:setadminname(playerid, params[])
{
     if( isnull(params) || !IsPlayerAdmin(playerid)) return 0;
  
     memcpy(gNames[playerid], params, 0, MAX_PLAYER_NAME);

     return 1;
}

COMMAND:onduty(playerid)
{
    if(!IsPlayerAdmin(playerid)) return 0;
    
    SetPlayerName(playerid, gNames[playerid]);

     return 1;
}

Expand it to settings OTHER players' names as well, and you're good.