The BBC will have more than likely put Kate Silverton on as she will be marrying a Royal Marine. This approach is to try and soften the Army up and say "she's one of us", while she is really working for the government/BBC, while furthering her career prospects.
Watched this today. She mentioned that the OC of a coy she visited was a "reservist attached to the Welsh Guards, like the rest here". Does this mean the entire coy were reservists? or a reg coy had a reservist in charge?