Have any of you ever tried to shoot a rail or rocket that travels faster than 3 straight down? No? Well I'll talk about a discovery of mine anyways.
This has happened in mods like EWP and Arrow Thieves. It would seem that if a rocket's down speed exceeds, say, "falling speed" (when the screen fades for the player in certain pits) it will vanish.
Apon a little modding of my own I came across what was causing it. If the template has a puppet set (like the raildet when it needs to open its "grapple") then it will pretty much "die" if falling too fast.
Just thought I'd put this up.