By default, the XR-2 spawns with 14 crew, and I was wondering if there was a way to reduce this so I can do longer duration missions without messing with the cfg files?
XR crew is (was) managed by UMMu, but UMMu is not compatible with Orbiter 2016, so I had to temporarily disable that in the XR vessels. However, there is an open-source replacement for UMMu in development, oMMU. Once that is ready, I will update the XR vessels to use it.