DFD-R4: 518 vs. 730

[reaperrr]

Support #518. Not only would it complement #349 rather well, I also think the TS split missile is not that great either way. I've modded TS for quite some time and followed other TS mods as well, and this logic doesn't see wide-spread use at all. I doubt it would be any different here.

Also, something very similar to that particular effect that made the requester file this request should be possible through work-arounds, at least if #504 survives.