Hamachi could get quite laggy, but I do believe Hamachi LAN works as long as they can see the server in the in-game LAN server list.
All drivable vehicles have passenger seats (5 seats for opeltrucks) for carrying teammates only (no passengers allowed for Free-For-All). Tanks, jeeps, and SDKFZs also have a 30 Cal Turret Slot. Other vehicle controls are printed in gold to each player when they hop in.
Searingwolfe
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