So your armoured ship has redundancy in its drives. That railgun hit just slowed it down a bit.
But you can fly close to the ground. How is someone going to get a shot up your kilt when you're passing them at a quarter the speed of sound at 10m altitude? And you can build in redundancy. Or you can just land, and use your vastly superior mobility when nobody's beneath you.
Maybe there's a balance point where tracks are worthwhile. Never said there couldn't be. Said it's difficult. More difficult than you're blithely waving your hand at.
But you can fly close to the ground. How is someone going to get a shot up your kilt when you're passing them at a quarter the speed of sound at 10m altitude? And you can build in redundancy. Or you can just land, and use your vastly superior mobility when nobody's beneath you.
Maybe there's a balance point where tracks are worthwhile. Never said there couldn't be. Said it's difficult. More difficult than you're blithely waving your hand at.