Tatto, if you open .mdl with animations (only KEYFRAME animation type supported now, KEYFRAME_MATRIX animations such as pistons of default steam trains seems glitchy), it shows animations list under LODs list and play it, if you choose animation there.
TFMV uses some scripts from game to correctly load some values from vehicle configs. So, cost mod, probably, changes this game scripts and vehicle configs. To load modified by cost mod vehicles you should copy modified scripts from \TrainFever\res\scripts\ into \TFMV\lua\.
Also, for now I’m working on implementing some editing ability into TFMV and TFMC integration.
