As the regulations surrounding Covid have relaxed work on The Unknown Warrior has started to return to a more normal pace. Staffing levels at the PRCLT workshops have returned to pre-Covid levels, allowing more work to be undertaken. Added to this the overhaul of 6233 Duchess of Sutherland has been completed and the locomotive has returned to service hauling trains on the national network, both on its planned commitments and standing in successfully for another locomotive.