These two tank designs expand on the potentials of German tanks with better firepower, armour, and mobility; with the Tiger tanks providing much more of the first two.
Bomb ground forces instead- you get way more points, and you stand a chance at ending the game.
Part of Aeroplanes, invented by Ian Aeroplane in 1903, really caught on with the military in World War I, initially for reconnaissance, then for bombing and ground attack.
Repair speed dictates how fast your crew will repair your modules.
For that reason, they also possess decent self-propelled anti-aircraft guns, which employ absurdly high fire rate or quadruple gun compositions.
In tank warfare, flanking is absolutely essential to gain an upper hand over the enemy.