Don't oversell yourself but also don't undersell yourself.
Friend got caught out once in the late 1990's with a "How do you cope with change" question after 25 years in the services from 16-17, he imploded.
Initially view was he didn't as nothing really changed when he in HMGs employee.
It was funny sitting down and reminding him of what i could remember of mid 70's and services collecting bins or driving fire engines, cold war enemies, Falklands war, end of Cold war, Northern Ireland, Gulf war, exercises in NATO in with former enemies.........then suggesting that if he thought that nothing had changed from day he went in to day he left.
He wasn't involved in all of them and accepted no blame for starting any of them apart from what he claims a few fights while tired and emotional........suggested not a good idea to talk to an employer about that element.
Bluntly told him that anybody in the services for that length of time or even part of it has seen huge organisational change as well as change of masters when elections occur.
Accordingly he should be stating that change was a normal state of affairs giving examples over either short, medium or long term.
Funnily enough this he has used on a number of occasions since and gets credit for it plus number of jobs.