Battletech transport tube V2

This is a remix of the "BattleTech Lance Transport tube". The spacing for the grooves in the original was too far apart and would not hold the mechs in place. I reduced the size of the grooves so they should fit more snug without falling out. I also modified the design in a way so you can still use the original authors end caps without any issues. They put a lot of work into the end cap designs so please visit their page to get them and the top panel files.