Greetings,
I've made some missile.dds (the image file used for tracer rounds) to "theme" the tracer visual(-s) to my liking -- as far as possible. Maybe someone has also use for it, so I'll throw it in here.
One version (1) is close to the original, a bit smaller, less orange, more colors towards red/purple, mipmap fade to color (gray) removed. Version 2's glowing edges are a bit fuzzier, amount of R glow dominating.
Backup originals before overwriting. Remove the .vn. of the desired version beforehand.
trace_orig.jpg shows the original tracer round graphics.
tracer.zip