Yes, both that thread on reddit and this thread have the latest version download link.
To use it, download the voice pack and put it somewhere you can find it (I recommend the RTST folder or the Voice Pack subfolder), then launch recursion and select [Tools]->[Options] at the top, then [Audio] in the window that pops up, and you'll see a button to [Load] a voice pack. Click it and then navigate to wherever you saved the file SpaceMarinesMkIIforRTST10.rtst_vpk and you're good to go.