>>64162715
cavalry troop setup was originally composed of humvees and bradleys
the humvee was seen as useless in this role because its wheels suck ass off-road, ie. where cavalry will usually be used, and its poor armor (wheels cant carry much) meant that it couldnt protect itself in the inevitable case it got stuck
so modern cavalry troop setup is now bradleys and M1 abrams
the humvee is literally less mobile than the M1 abrams in combat situations
the humvee mostly stays in rear-ech roles, where it can choose to stay on roads most of the time or at least avoid the worst terrain, but they absolutely cannot go where tracks go and why tracks are still preferred for anything that will see combat