JarateKingAny mods? sv_pure of the server you're on?
aieraCan you help all of us remove it?Wouldn't be OP's issue (probably), but transparent viewmodels without one of the console commands changed will also cause particle effects (like rocket trails) to go transparent like the viewmodels. Would change every particle afaik, so you probably wouldn't want to fully hide them all, but you could go semi-transparent for more visibility.
Modding the rocket trail pcf file would be able to fully hide just the rocket trail, but I'm not sure if it'd work in sv_pure. It might be possible, but some pcf's let you remove particles in sv_pure and some don't for some reason. I'll test it out but I can't promise results.
Would this work for removing unusual effects?