[Schneider]

Here you go, but you could have easily figured this out yourself If you would have searched..

pawn Код:

public OnPlayerTakeDamage(playerid, issuerid, Float: amount, weaponid, bodypart)
{
    if(weaponid == 34)
    {
        SetPlayerHealth(playerid, 0.0);
    }
    return 1;
}