Was building a customization of a Battle Taxi in Lab and I noticed a three small bugs with making the small craft.
First I noticed that while the fuel section is proper for the weight, the summary section below will list the weight of the fuel as half a ton higher than is actually on the craft (unless fuel is zero) This seems to be a purely cosmetic effect.
Second I attempted to validate the small craft and it passed validation, I then realized that I had not assigned the guardian ecm to any slot, and placed it in the hull slot. The validation should not have been passed with an item unallocated.
Third I attempted to see the cost breakdown of the craft in Cbills. I selected the Unit Validation menu, and took the fourth choice Unit Cost Breakdown, then the first choice Breakdown Current Unit. This causes it to pop up a window with the Battle Value calculations for the craft, instead of the Cbill cost.
These are all relatively minor, but if someone could check that the three issues are happening to them also and let me know, I can open a ticket for the changes.
In addition I know that when the small craft and above sized ships were placed into MegaMek, there was a decent amount of work to get the ships to proper size/rule sets.
When I loaded the Battle Taxi into lab it showed up about 20 tonnes underweight. It also listed the crew quarters as 3 crew and 1 gunner (one being an officer) however the quarters are listed as 4 steerage. When using the auto assign button it changes it to 3 steerage and an officer's quarters. This does not use up anywhere near the amount of tonnage to fill the missing space.
And while I am on it I don't know if it is fluff or gameplay, but the Battle Taxi has two BA bays and a single ton cargo bay. None of these have any doors. However if these are removed and the two BA bays and the 1 ton cargo bay are replaced they are listed with a door each (which doesn't fill the max 4 doors allowed for the small craft) at the same weight and all other statistics. There is no build reason to handicap the ship by leaving the doors off that I can see, but maybe they want to be left off for fluff reasons. In any case someone should take a look at changing the quarters and fixing the missing tonnage.