Ok.
So just buffer the 4(is more possible?) hostages inside an array that contains their entity index when the round starts.
Loop that array upon rescue and check pev_valid() or similar.
Code:
for ( new i ; i < sizeof hostagearray ; i++ ) {
if ( hostagearray[i] && ! pev_valid(hostagearray[i]) ) {
playerbitsum |= (1<<i)
return;
}
}
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