Is it possible to make different muzzleflash to play when you fire tracer round ? Or any other workarounds.

I already have weapon to fire normal round but when the tracer round fires there should be a specific effect i want to attach that works as a muzzleflash.

I bet theres something have to do with AEmitters or MOSRotatings gibbing and releasing projectiles but i'm not sure how to do this.

Make it so that your gun does not have a muzzleflash.
Make your normal shot a TDExplosive that gibs into your original normal shot, with the effect you want.
Make your tracer shot a similar TDExplosive that instead gibs into what you want as your tracer, with the corresponding effect.

I think will be better if you'll use AEmitter instead of TDExplosive

Gun shoots AEmitter that emits your regular round. AEmitter have BurstTriggered = 1, and your regular muzzleflash as his flash. And Lifetime = 1

Same way do the tracer round.

Problem is, an AEmitter will not carry over the velocity of the actor in the emitted rounds without sparkle magic becoming involved. The advantage of an AEmitter is, however, that if you are using a variety of rounds a TDExplosive will release them all at roughly the same velocity whereas an AEmitter is able to have unique velocities for each.