1. Some early British search lights were on caterpillar tracks ...
2. The vehicle in the first screen is a barrage balloon truck (I think).
RedToo.
1. most
2. Correct. It is working In trasport position for relocation. Howevber I don't know if it will be in release. 2 versions or just one that will work for all situations. Probably two versions of models is more realistic in terms of time limit etc.