The latest update I put on SourceForge fixes a bunch of calculation bugs that I had come across plus some other tweaks. I also added preliminary structure/building construction to REMLAB as well. FASA never really flushed out the rules for designing building and installations. The orignal Compendium had rules for it but they just seemed to have too many unnecessary features. So I ultimately went off the “guidelines” from the Maximum Tech source book. Because of the way REMLAB is written there are just a few minor limitations with weapons allocation on multi-hex buildings, but nothing really serious. For the next release, I’m going to try and finish ProtoMechs.