Remélem segítettem.

#include <a_samp>
#include <zcmd>
#include <sscanf2>
CMD:ooc(playerid, params[])
{
new S[100], S2[128], Name[MAX_PLAYER_NAME];
GetPlayerName(playerid, Name, sizeof(Name));
if(sscanf(params, \"s\", S)) return SendClientMessage(playerid, -1, \"Használat: /ooc < Szöveg >\");
format(S2, sizeof(S2), \"(( %s ooc: %s ))\", Name, S);
SendClientMessageToAll(-1, S2);
return 1;
}