Legends of the Dark Knight: Siege torrent

Siege (132-136)
By Archie Goodwin, Marshall Rogers, and Bob Wiacek
Set in the timeframe during which Bruce Wayne and Alfred Pennyworth lived in a downtown penthouse instead of Wayne Manor (in Batman publications from 1970 to 1982). An aging mercenary (and former protege of Bruce's grandfather Jack Wayne) uses a manufactured gang war and a mercenaries' convention as cover for an attack on Gotham and Wayne Manor. Silver St. Cloud briefly returns to Bruce's life as well.
"Siege" was one of the final stories written by Archie Goodwin before his death.