Hi Kainzorus thanks for the reply.
Thats exactly what I already checked. The .txi files are there for HK50 and HK51.
Also the lines in the appearance.2da are changed. HK50 uses CM_Baremetal and HK51 uses mycube.
I also tried to manually change them both to CM_Barematel, mycube or default.Nothing worked.
Is the HK unit on Peragus maybe neither HK50 nor HK51? Maybe I changed the wrong line in the appearance.2da