Highway to Kremlin II (OSG) - Map Trimming & Upgrades

About Highway to the Kremlin: Napoleon's March on Moscow, from BoardGameGeek:

Napoleon's march on Moscow, 1812. Covers June 24 - December 13, 1812. Many scenarios plus full campaign game. Two 22 x 34" map sheets, 280 double sided counters, rules book and excellent study folder come in a book case sized box. GAME SYSTEM: CAMPAIGNS System (Series 5 X) = 16,000 m/hex (16 km/hex), 5,000 men/SP, 5 days/turn.