I echo what Madbob said. My departure, after over 27 years, was in the 90s redundancies. There are three key points:
1. Don't undersell yourself, really believe that you have transferrable skills.
2. Produce a stunning, pithy and attention-grabbing CV.
3. Network, network, network and network - and continue to do so once you are in your first civvy job, beacuse it will help when you move on to the next one!
Good luck to all that leave, there are many opportunities out there, even in difficult economic times.