Invisible Models (Prop Hunt)

So i have this problem in Prop Hunt where i can t see the model of the combine. It said i couldn t read the following data: combine_elite_player.vtf . even after reinstalling and replacing the data nothing changed. Can anyone here please tell me what to do about this? Also some of the textures are flashing in neon colors from time to time and i can t figure out why. I have most SOurce games installed an mounted in garrys mod, but it doesn t fix anything.