I recently watched the huthTV streamer, and I liked its purple weapon models. I downloaded them, and after a while I decided to reinstall half life due to a bug. But unfortunately I forgot to save the weapon models. I've lost them, I can't find them. Can you help me?

Is it legal to use your own weapon models in speedrun? I use purple weapon models in my races. they don't give an advantage, they just refresh my speedrun.

P.S (I barely speak English. don't judge me harshly ^-^)