| 3 Aug 42 | Re-organised as a heavy regiment from 3 Royal Marine Anti-Aircraft Regiment |
UK |
| Mar 43 | Batteries concentrated for embarkation | Nottingham, Nottinghamshire, UK |
| Jun 43 | Corps Army Troops | Egypt |
| Jul 43 | HQ Egypt – Batteries in defence of Malta | Egypt |
| Jul 43 | Mobile Naval Base Defence Organisation 2 | Augusta, Sicily |
| Feb 44 | Preparing for disbandment but retained | Scotland, UK |
| Mar 44 | 5 Royal Marine Anti-Aircraft Brigade | Scotland, UK |
| May 44 | At Training Camps | Clacton, Essex, UK |
| Jun 44 | Air Defence Great Britain | UK |
| Aug 44 | 5 Royal Marine Anti-Aircraft Defence Brigade | Cherbourg, France |
| Oct 44 | Scheldt Air Defences | Antwerp, Belgium |
| Mar 45 | Coast defence | Ostend, Belgium |
| May 45 | Disbanded November 1945 | Southern England, UK |
Batteries
| Aug 42 | E, F, G, H |