I found a bug in manufacture rules file, line 201: upgrading a scout drone to taser drone will produce a scanner drone.
I also did small fixing to the research tree diagram, but seems I'm not able to post anything here.
I added an alloy weapon tree, and slightly modified the explosives tree adding explosive ammo and stun/fire grenade.
Maybe wrong place to ask, but is the alloy ammo cost really intended?
I like the idea of alloy ammo to improve conventional weapons, but manufacturing cost and time are so high that are pushing them out of the game (specially early game). Maybe I should start a new thread with more detailed analysis elsewhere.