"Reaction melee" was added long ago. The news for v0.9 indicate the Reapers can do it.https://openxcom.org/2013/05/its-finally-here-version-0-9/
Ah ok, thanks. Does it also works with Stun Rods?
I can speak from personal experience, yes it works with stun rods. Came as a total surprise really. Be aware of the Reactions stat, your soldiers are far less likely to reaction-prod someone than a Chryssalid is to reaction attack.
On a side note, have they made Cryssalids fair (meaning, they have to kill a unit actually to zombify it) or is it like vanilla (no matter what happens, if Cryssalid attacked a unit, when it stops attacking unit will be zombified)?
LOL. I was thinking more about UFO fighting actually.