Вот, держи public OnPlayerDeath(playerid, killerid, reason)
{
if(killerid == INVALID_PLAYER_ID)
{
SetPlayerScore(playerid,GetPlayerScore(playerid)-1);
}
else
{
SetPlayerScore(playerid,GetPlayerScore(playerid)-1);
SetPlayerScore(killerid,GetPlayerScore(killerid)+1);
return 1;
}
Поставь + если помог