I have just finished the baggage elements for Zorndorf. Some are new and some are old. There is a mixture of old Hinchcliffe (water barrel), scratch built (the coach), Foundry and Front Rank. The Front Rank stuff (the four 'ammunition wagons' with drivers) is the new stuff and was a pleasure to paint up.
The baggage forms internal barriers within the Russian deployment area. They stop the Russians from re-deploying in response to the Prussian attacks. They are very important to the way the battle plays out and cannot be omitted.