Rubber track pads & ice don't make good partners....the rubber loses the majority of its flexibility when it reaches freezing temperatures (i.e., running on ice) and it is very easy to get tracked vehicles sliding when on ice.
In 1986 I was stationed halfway up Mount Fuji in Japan. We hated having to go train during the wintertime, as the roads were frozen solid and even with 60 tons we had NO traction. We had several tanks come sliding down what used to be a dirt or muddy trail, but once it froze it was like a giant slide. We removed track pads so just the metal track grousers would try to bite into the ice; DIDN'T WORK. We then swapped every other center guide to face out, like wheel studs or giant ice crampons; STILL DIDN'T WORK! One M60A1 tank got so stuck in a snowbank after sliding several hundred feet downhill that we thought we were going to have to wait until the spring thaw to recover it....3 tanks + 1 M88 all cabled together finally pulled it free. Ice sucks when you're an armored crewman.
The year before, our sister company, Bravo, had a platoon out doing training in the wintertime...they tried negotiating a loooooooong straight downhill dirt trail that was solid ice, in order to go underneath a freeway overpass to another training area. The first tank instantly lost traction, and started sliding faster & faster downhill, spinning around & bouncing from one side to the other.....the underpass was wide enough for one tank to go through at a time, when this tank reached the bottom at the underpass, the nose of the tank had turned forward in time to strike the overpass abutment. The gunner had some fairly critical injuries & had to be airlifted to a hospital in southern Japan. There was a huge chunk of concrete torn out of the freeway overpass abutment, the Japanese highway authorities were really concerned that there might have been more damage to the structure. But in the end the concrete won, the tank crew lost. Every time we'd go through that underpass we'd stare solemnly at the chunk of concrete missing and pray for the injured crewmen.
In the end it's very easy to spin tracked vehicles on ice, and you'd never tell by looking at the track pads. That Bradley driver has some mad skills, that was cool!!
Of course I get paid to do this at my work in my company car....so I'm partial to this exercise!