@3run: Can you upload the level?

@sivan: I use my own LOD system, because it is much more flexible . You can adjust the clip distance of each entity individualy. It don't use a loop for each entity. There's a main loop to do the LOD switching. Every frame only 20 entities are checked if they need to get switched. This works very accurate. And if you don't want to use the IceX3 LOD system it's no problem. You can still use the engines LOD system by using _1.mdl models.