Actually - that’s not 100% accurate…
New ACRoMaTI actually requires each cadet to have also completed an approved theory / classroom session, PLUS 4 documented RM training walks of increasing distance, of not less than 15k, 20k and 25k… to be awarded Blue; then all of the above plus either 1x 40k or a 2 day x 20k (on sequential days) for Bronze; and all of the above plus a 2 day x 40k (on sequential days) for Silver.
To be upgraded to Silver, we have been advised that you will need to be able to show documentation on your SMS profile to confirm completion of theory element, training walks, 1x 25mile and 2x 25 mile.
In theory - if you completed Cosford at 2x 40k, I would assume that you had participated in an organised training regime, which is recorded.
Being 2 years ago, I doubt you will have completed the theory bit - a bit like shutting the horse and all that, but those are the hoops.
In the meantime, a friendly chat with your sqn staff and WRMO “may” be sufficient, but I believe the official response is as above.
What’s more - if approved, although you can get your virtual brassard upgraded - the wait for a Silver badge is likely to be lengthy given that so many are now potentially eligible if they did the classroom bit during lockdown.
Finding Silver RM badges will be as easy as finding Blue RM badges…!
Previously the only main events for Silver were Pathfinder and Deathmarch…hence, not a lot of take up - most cadets went from Bronze to Nijmegen (Gold). In a weird way, having your Silver was the least common!