Okay, I followed Amineri's suggestions, and here's what happened after a couple of hours of testing. I made sure the SoundNodeWave, and SoundCue works. Also tested the animation to make sure that it works. I imported the sniper animation in 3ds max, fixed the position of the bones for FF_FireA, FF_FireWeaponA, and HL_ReloadA, and increased the FF_FireA animation to 4 frames (0.0917 seconds). I tested this with minimal settings, the the AnimNotify for the sounds and particle systems seem to play just fine, with an average of 40 - 60 frames per second. Then I tested the SVD with the absolute maximum settings, the AnimNotify for the sound and particle systems fail to play, with an average of 15 - 20 frames per second, without using the slomo command. I not sure what's going on. I can't seem to get a perfect .08 seconds in 3ds max when I adjusted the timeline. I also tried using 370 ticks to reach .08, but I instead get .0802 seconds when I imported the animation into Unreal.