Operation Hanoi is a budget rail shooter heavily inspired by Operation Wolf. The back of the box says:
"You are to lead a small, but stealthy, commando force across rivers, and through jungles, to a harbour where you must capture, and destroy a SUPER-TANK that is being used to enslave the population of Campuchia. Success in your mission will lead to the end of a tyrannical dictatorship. Failure will lead not only to the continued enslavery of the people of Campuchia, but also to the subjugation of the surrounding lands."