Ok so I was testing my tiger tank in my backyard last night and it did horrible in grass. I made the mistake of trying to pivot the tank in high grass, so naturally it got stuck. I picked it up and drove it around on the tarmac for about 30 seconds. I noticed the tank was drifting to it’s side and going slower tank normal, so I investigated. Low and behold, the tank LITERALLY UNSCREWED it’s drive sprocket ALL by ITSELF in the grass. the track crept off and the wheel fell out. In the field. No wonder it wouldn’t pivot. Luckily I found all the parts and repaired it. Just thought I would share this