[HY]

Well... We cannot guess your code.
If you could give to us your enums about War System..
Well, you could do something like this.

pawn Код:

public OnPlayerDeath(playerid, killerid, reason)
{
    if(PlayerInfo[killerid][Leader] == PlayerInfo[playerid][Member])
    {
        SendClientMessage(playerid, -1, "You killed your own member in war. You lost 1 point.");
        // Other functions here.
    }
    return 1;
}

Repeat. Replace that PlayerInfo functions with your real enums. I can't guess your code, but I gave to you an example.

Cheers.