I though maybe this was an intentional effect as the rest of the soldier bits can be found nearby. But I notice it doesn’t appear this arm is being held up by anything. This is in Residue processing if you jump off the conveyor belts with the big round crusher things into the water below after the second tripmine.
Map: bm_c2a4c
setpos -50.197685 -1188.969238 -261.798981;setang -36.475700 -178.347717 -0.007162