[dexi]

new PlayerAdmin[MAX_PLAYERS];

On connect store and load this variable.

Make a 'makeadmin' command then just check the level for using it, ex.:

CMD:makeadmin(blabla) {
blabla

if(PlayerAdmin[playerid] != 3) return SCM(blabla, "You need to be level 3 admin.");

PlayerAdmin[another] = level;

return 1;
}