[Anthonyx3']

A cmd to just kill you basically? Simple:

pawn Code:

CMD:kill(playerid, params[])// This is stating the commands name, /kill, using the zcmd heading
{// this signals the like start of code
    SetPlayerHealth(playerid, 0);// this sets the player ids health to 0
    SendClientMessage(playerid, 0x2641FEAA, "Your Emo, You Killed Yourself");// This sends the player who did the cmd a message saying he killed himself, using color blue which is 0x2641FEAA
    return 1;// this is needed or else doesnt work
}// end the cmd

You need to include zcmd on your script, on top make sure you have:

pawn Code:

#include <zcmd>

And explain what else you might need to add as i wasnt sure