Help with TF2 rockets

So i was wondering how i can make the rockets you spawn from the TF2 list with green circles have flames coming out of the back of them to make it look like they really are flying at something out of the launcher.

thanx for your time and suggestions
jazzbandit1313

Theres probably another effect of the fire.
And please dont sign your post and please spell correctly.

[editline]05:10PM[/editline]

Oh and welcome to facepunch

thanks man ill try to find more “fire effects”