[kadet.89]

I've been using it a lot with prop_* and npc_* entities in CS:S and now use in CS:GO in CEntity framework, it's absolutely stable. But for weapon_* some tricks/corrections are required to avoid crashes. In CS:GO a weapon class id should be set to the correct one and a prefab for the new classname should be added. In CS:S map parser function should be hooked to replace the classname to the original one and then back in a postspawn hook and all animations are to be started "manually"