Well, the alternative plan he talked about where Ukraine walks across the swamp, the Syvash, is probably the best plan. I have not yet seen any detailed operational plans discussed anywhere else so I will not say it here. I suggest you look at the Siege of Perekop, where the Soviets walked across the swamp, the Syvash, to flank enemy positions and take them by surprise. I think it might be workable for light infantry. Nevertheless, the Soviets took heavy casualties in taking Crimea.