That's the point. Air makes Tanks useless, not Infantry. Infantry does not have the speed or capability. Only due to Air's ability to **** vehicles, and Air's superior mobility & Speed, are tanks useless. Isn't that glorious? The sole purpose of infantry, and sole place they survive is in the smaller environment walled off, praying for no enemy Aircraft to get an angle. If tanks could enter every base, and capture every point, Infantry would be the true useless. As why cap a point with a squishy, if a massive tank capable of withstanding much more can do it always. Beacons are squad-limited, with a long-standing timer. As well, in proper battle where you can't call the enemy out for having Non-equal numbers, Sunderers are a lot better. Infantry only by ability to re-deploy, and usually into Galaxies or Valks, are more mobile. If Tanks were equal inside bases to small infantry, Infantry could never leave without Air support killing off every vehicle. Aircraft is literally behind everything you said. As only aircraft is that mobile. if we could pack tanks into Galaxies, you'd see just how much aircraft is responsible for 'infantry mobility' outside of spawn-jumping.